PNP IDs are supposed to be case-insensitive and so we should compare
them as such.
Signed-off-by: Dmitry Torokhov <dmitry.torok...@gmail.com>
---
drivers/input/mouse/psmouse-base.c | 39 +++++++++++++++++++++++++++++++-------
1 file changed, 32 insertions(+), 7 deletions(-)
diff --git a/drivers/input/mouse/psmouse-base.c
b/drivers/input/mouse/psmouse-base.c
index 4ccd01d..a175496 100644
--- a/drivers/input/mouse/psmouse-base.c
+++ b/drivers/input/mouse/psmouse-base.c
@@ -463,19 +463,44 @@ 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;
-
- 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;
+ struct serio *serio = psmouse->ps2dev.serio;
+ char *p, *fw_id_copy, *save_ptr;
+ bool found = false;
+
+ if (!strncmp(serio->firmware_id, "PNP:", 4))
+ return false;
+
+ fw_id_copy = kstrndup(&serio->firmware_id[4],
+ sizeof(serio->firmware_id) - 4,
+ 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;
+ }
- return false;
+ kfree(save_ptr);
+ return found;
}
/*
--
2.2.0.rc0.207.ga3a616c
--
Dmitry
--
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