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[PATCH] shpchp: Remove unnecessary hpc_ctlr_handle check
This patch removes unnecessary error check for hpc_ctlr_handle. Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Cc: Kristen Accardi <kristen.c.accardi@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Kenji Kaneshige
Greg Kroah-Hartman
parent
132066a9c8
commit
d4fbf60066
@ -330,7 +330,6 @@ static inline int shpc_wait_cmd(struct controller *ctrl)
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static int shpc_write_cmd(struct slot *slot, u8 t_slot, u8 cmd)
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{
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struct php_ctlr_state_s *php_ctlr = slot->ctrl->hpc_ctlr_handle;
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struct controller *ctrl = slot->ctrl;
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u16 cmd_status;
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int retval = 0;
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@ -341,12 +340,6 @@ static int shpc_write_cmd(struct slot *slot, u8 t_slot, u8 cmd)
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mutex_lock(&slot->ctrl->cmd_lock);
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if (!php_ctlr) {
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err("%s: Invalid HPC controller handle!\n", __FUNCTION__);
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retval = -EINVAL;
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goto out;
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}
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for (i = 0; i < 10; i++) {
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cmd_status = shpc_readw(ctrl, CMD_STATUS);
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@ -401,11 +394,6 @@ static int hpc_check_cmd_status(struct controller *ctrl)
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int retval = 0;
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DBG_ENTER_ROUTINE
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if (!ctrl->hpc_ctlr_handle) {
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err("%s: Invalid HPC controller handle!\n", __FUNCTION__);
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return -1;
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}
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cmd_status = shpc_readw(ctrl, CMD_STATUS) & 0x000F;
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@ -442,11 +430,6 @@ static int hpc_get_attention_status(struct slot *slot, u8 *status)
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DBG_ENTER_ROUTINE
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if (!slot->ctrl->hpc_ctlr_handle) {
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err("%s: Invalid HPC controller handle!\n", __FUNCTION__);
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return -1;
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}
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slot_reg = shpc_readl(ctrl, SLOT_REG(slot->hp_slot));
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state = (slot_reg & ATN_LED_STATE_MASK) >> ATN_LED_STATE_SHIFT;
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@ -477,11 +460,6 @@ static int hpc_get_power_status(struct slot * slot, u8 *status)
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DBG_ENTER_ROUTINE
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if (!slot->ctrl->hpc_ctlr_handle) {
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err("%s: Invalid HPC controller handle!\n", __FUNCTION__);
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return -1;
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}
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slot_reg = shpc_readl(ctrl, SLOT_REG(slot->hp_slot));
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state = (slot_reg & SLOT_STATE_MASK) >> SLOT_STATE_SHIFT;
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@ -512,11 +490,6 @@ static int hpc_get_latch_status(struct slot *slot, u8 *status)
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DBG_ENTER_ROUTINE
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if (!slot->ctrl->hpc_ctlr_handle) {
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err("%s: Invalid HPC controller handle!\n", __FUNCTION__);
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return -1;
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}
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slot_reg = shpc_readl(ctrl, SLOT_REG(slot->hp_slot));
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*status = !!(slot_reg & MRL_SENSOR); /* 0 -> close; 1 -> open */
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@ -532,11 +505,6 @@ static int hpc_get_adapter_status(struct slot *slot, u8 *status)
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DBG_ENTER_ROUTINE
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if (!slot->ctrl->hpc_ctlr_handle) {
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err("%s: Invalid HPC controller handle!\n", __FUNCTION__);
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return -1;
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}
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slot_reg = shpc_readl(ctrl, SLOT_REG(slot->hp_slot));
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state = (slot_reg & PRSNT_MASK) >> PRSNT_SHIFT;
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*status = (state != 0x3) ? 1 : 0;
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@ -550,11 +518,6 @@ static int hpc_get_prog_int(struct slot *slot, u8 *prog_int)
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struct controller *ctrl = slot->ctrl;
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DBG_ENTER_ROUTINE
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if (!slot->ctrl->hpc_ctlr_handle) {
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err("%s: Invalid HPC controller handle!\n", __FUNCTION__);
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return -1;
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}
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*prog_int = shpc_readb(ctrl, PROG_INTERFACE);
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@ -626,11 +589,6 @@ static int hpc_get_mode1_ECC_cap(struct slot *slot, u8 *mode)
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DBG_ENTER_ROUTINE
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if (!slot->ctrl->hpc_ctlr_handle) {
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err("%s: Invalid HPC controller handle!\n", __FUNCTION__);
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return -1;
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}
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pi = shpc_readb(ctrl, PROG_INTERFACE);
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sec_bus_status = shpc_readw(ctrl, SEC_BUS_CONFIG);
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@ -653,11 +611,6 @@ static int hpc_query_power_fault(struct slot * slot)
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DBG_ENTER_ROUTINE
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if (!slot->ctrl->hpc_ctlr_handle) {
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err("%s: Invalid HPC controller handle!\n", __FUNCTION__);
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return -1;
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}
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slot_reg = shpc_readl(ctrl, SLOT_REG(slot->hp_slot));
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DBG_LEAVE_ROUTINE
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@ -667,19 +620,7 @@ static int hpc_query_power_fault(struct slot * slot)
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static int hpc_set_attention_status(struct slot *slot, u8 value)
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{
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struct php_ctlr_state_s *php_ctlr = slot->ctrl->hpc_ctlr_handle;
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u8 slot_cmd = 0;
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int rc = 0;
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if (!slot->ctrl->hpc_ctlr_handle) {
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err("%s: Invalid HPC controller handle!\n", __FUNCTION__);
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return -1;
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}
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if (slot->hp_slot >= php_ctlr->num_slots) {
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err("%s: Invalid HPC slot number!\n", __FUNCTION__);
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return -1;
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}
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switch (value) {
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case 0 :
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@ -695,76 +636,23 @@ static int hpc_set_attention_status(struct slot *slot, u8 value)
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return -1;
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}
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shpc_write_cmd(slot, slot->hp_slot, slot_cmd);
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return rc;
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return shpc_write_cmd(slot, slot->hp_slot, slot_cmd);
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}
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static void hpc_set_green_led_on(struct slot *slot)
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{
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struct php_ctlr_state_s *php_ctlr = slot->ctrl->hpc_ctlr_handle;
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u8 slot_cmd;
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if (!slot->ctrl->hpc_ctlr_handle) {
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err("%s: Invalid HPC controller handle!\n", __FUNCTION__);
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return ;
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}
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if (slot->hp_slot >= php_ctlr->num_slots) {
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err("%s: Invalid HPC slot number!\n", __FUNCTION__);
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return ;
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}
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slot_cmd = 0x04;
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shpc_write_cmd(slot, slot->hp_slot, slot_cmd);
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return;
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shpc_write_cmd(slot, slot->hp_slot, 0x04);
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}
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static void hpc_set_green_led_off(struct slot *slot)
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{
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struct php_ctlr_state_s *php_ctlr = slot->ctrl->hpc_ctlr_handle;
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u8 slot_cmd;
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if (!slot->ctrl->hpc_ctlr_handle) {
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err("%s: Invalid HPC controller handle!\n", __FUNCTION__);
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return ;
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}
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if (slot->hp_slot >= php_ctlr->num_slots) {
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err("%s: Invalid HPC slot number!\n", __FUNCTION__);
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return ;
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}
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slot_cmd = 0x0C;
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shpc_write_cmd(slot, slot->hp_slot, slot_cmd);
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return;
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shpc_write_cmd(slot, slot->hp_slot, 0x0c);
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}
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static void hpc_set_green_led_blink(struct slot *slot)
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{
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struct php_ctlr_state_s *php_ctlr = slot->ctrl->hpc_ctlr_handle;
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u8 slot_cmd;
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if (!slot->ctrl->hpc_ctlr_handle) {
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err("%s: Invalid HPC controller handle!\n", __FUNCTION__);
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return ;
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}
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if (slot->hp_slot >= php_ctlr->num_slots) {
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err("%s: Invalid HPC slot number!\n", __FUNCTION__);
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return ;
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}
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slot_cmd = 0x08;
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shpc_write_cmd(slot, slot->hp_slot, slot_cmd);
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return;
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shpc_write_cmd(slot, slot->hp_slot, 0x08);
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}
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int shpc_get_ctlr_slot_config(struct controller *ctrl,
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@ -778,11 +666,6 @@ int shpc_get_ctlr_slot_config(struct controller *ctrl,
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DBG_ENTER_ROUTINE
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if (!ctrl->hpc_ctlr_handle) {
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err("%s: Invalid HPC controller handle!\n", __FUNCTION__);
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return -1;
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}
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slot_config = shpc_readl(ctrl, SLOT_CONFIG);
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*first_device_num = (slot_config & FIRST_DEV_NUM) >> 8;
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*num_ctlr_slots = slot_config & SLOT_NUM;
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@ -804,11 +687,6 @@ static void hpc_release_ctlr(struct controller *ctrl)
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DBG_ENTER_ROUTINE
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if (!ctrl->hpc_ctlr_handle) {
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err("%s: Invalid HPC controller handle!\n", __FUNCTION__);
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return ;
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}
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/*
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* Mask event interrupts and SERRs of all slots
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*/
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@ -881,96 +759,53 @@ DBG_LEAVE_ROUTINE
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static int hpc_power_on_slot(struct slot * slot)
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{
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struct php_ctlr_state_s *php_ctlr = slot->ctrl->hpc_ctlr_handle;
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u8 slot_cmd;
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int retval = 0;
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int retval;
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DBG_ENTER_ROUTINE
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if (!slot->ctrl->hpc_ctlr_handle) {
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err("%s: Invalid HPC controller handle!\n", __FUNCTION__);
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return -1;
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}
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if (slot->hp_slot >= php_ctlr->num_slots) {
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err("%s: Invalid HPC slot number!\n", __FUNCTION__);
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return -1;
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}
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slot_cmd = 0x01;
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retval = shpc_write_cmd(slot, slot->hp_slot, slot_cmd);
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retval = shpc_write_cmd(slot, slot->hp_slot, 0x01);
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if (retval) {
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err("%s: Write command failed!\n", __FUNCTION__);
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return -1;
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return retval;
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}
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DBG_LEAVE_ROUTINE
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return retval;
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return 0;
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}
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static int hpc_slot_enable(struct slot * slot)
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{
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struct php_ctlr_state_s *php_ctlr = slot->ctrl->hpc_ctlr_handle;
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u8 slot_cmd;
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int retval = 0;
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int retval;
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DBG_ENTER_ROUTINE
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if (!slot->ctrl->hpc_ctlr_handle) {
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err("%s: Invalid HPC controller handle!\n", __FUNCTION__);
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return -1;
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}
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if (slot->hp_slot >= php_ctlr->num_slots) {
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err("%s: Invalid HPC slot number!\n", __FUNCTION__);
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return -1;
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}
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/* 3A => Slot - Enable, Power Indicator - Blink, Attention Indicator - Off */
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slot_cmd = 0x3A;
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retval = shpc_write_cmd(slot, slot->hp_slot, slot_cmd);
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retval = shpc_write_cmd(slot, slot->hp_slot, 0x3a);
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if (retval) {
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err("%s: Write command failed!\n", __FUNCTION__);
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return -1;
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return retval;
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}
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DBG_LEAVE_ROUTINE
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return retval;
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return 0;
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}
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static int hpc_slot_disable(struct slot * slot)
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{
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struct php_ctlr_state_s *php_ctlr = slot->ctrl->hpc_ctlr_handle;
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u8 slot_cmd;
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int retval = 0;
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int retval;
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DBG_ENTER_ROUTINE
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if (!slot->ctrl->hpc_ctlr_handle) {
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err("%s: Invalid HPC controller handle!\n", __FUNCTION__);
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return -1;
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}
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if (slot->hp_slot >= php_ctlr->num_slots) {
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err("%s: Invalid HPC slot number!\n", __FUNCTION__);
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return -1;
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}
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/* 1F => Slot - Disable, Power Indicator - Off, Attention Indicator - On */
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slot_cmd = 0x1F;
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retval = shpc_write_cmd(slot, slot->hp_slot, slot_cmd);
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retval = shpc_write_cmd(slot, slot->hp_slot, 0x1f);
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if (retval) {
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err("%s: Write command failed!\n", __FUNCTION__);
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return -1;
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return retval;
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}
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DBG_LEAVE_ROUTINE
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return retval;
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return 0;
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}
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static int hpc_set_bus_speed_mode(struct slot * slot, enum pci_bus_speed value)
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