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ALSA: hda: read CORBWP inside reg_lock

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This converts the last CORBWP access outside of reg_lock.

Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Wu Fengguang 2009-08-01 18:48:12 +08:00 committed by Takashi Iwai
parent cdb1fbf231
commit c32649feb4
1 changed files with 3 additions and 1 deletions
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4
sound/pci/hda/hda_intel.c
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@ -588,15 +588,17 @@ static int azx_corb_send_cmd(struct hda_bus *bus, u32 val)
unsigned int addr = azx_command_addr(val);
unsigned int wp;
spin_lock_irq(&chip->reg_lock);
/* add command to corb */
wp = azx_readb(chip, CORBWP);
wp++;
wp %= ICH6_MAX_CORB_ENTRIES;
spin_lock_irq(&chip->reg_lock);
chip->rirb.cmds[addr]++;
chip->corb.buf[wp] = cpu_to_le32(val);
azx_writel(chip, CORBWP, wp);
spin_unlock_irq(&chip->reg_lock);
return 0;