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Input: psmouse - when comparing PNP IDs ignore case

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PNP IDs are supposed to be case-insensitive and so we should compare
them as such.

Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Dmitry Torokhov 2015-02-27 16:17:59 -08:00
parent d7535ffa42
commit 99e14c1e23
1 changed files with 32 additions and 6 deletions
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38
drivers/input/mouse/psmouse-base.c
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@ -463,19 +463,45 @@ static int psmouse_poll(struct psmouse *psmouse)
PSMOUSE_CMD_POLL | (psmouse->pktsize << 8));
}
static bool psmouse_check_pnp_id(const char *id, const char * const ids[])
{
int i;
for (i = 0; ids[i]; i++)
if (!strcasecmp(id, ids[i]))
return true;
return false;
}
/*
* psmouse_matches_pnp_id - check if psmouse matches one of the passed in ids.
*/
bool psmouse_matches_pnp_id(struct psmouse *psmouse, const char * const ids[])
{
int i;
struct serio *serio = psmouse->ps2dev.serio;
char *p, *fw_id_copy, *save_ptr;
bool found = false;
if (!strncmp(psmouse->ps2dev.serio->firmware_id, "PNP:", 4))
for (i = 0; ids[i]; i++)
if (strstr(psmouse->ps2dev.serio->firmware_id, ids[i]))
return true;
if (strncmp(serio->firmware_id, "PNP: ", 5))
return false;
return false;
fw_id_copy = kstrndup(&serio->firmware_id[5],
sizeof(serio->firmware_id) - 5,
GFP_KERNEL);
if (!fw_id_copy)
return false;
save_ptr = fw_id_copy;
while ((p = strsep(&fw_id_copy, " ")) != NULL) {
if (psmouse_check_pnp_id(p, ids)) {
found = true;
break;
}
}
kfree(save_ptr);
return found;
}
/*