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ALSA: hda - Fix the max length of control name in generic parser

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add_control_with_pfx() in hda_generic.c assumes a shorter name string
for the control element, and this resulted in the truncation of the
long but valid string like "Headphone Surround Switch" in the middle.

This patch aligns the max size to the actual limit of snd_ctl_elem_id,
44.

Cc: <stable@vger.kernel.org> [v3.9+]
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2013-06-28 11:51:32 +02:00
parent cd6fb6793a
commit 0c055b3413
1 changed files with 1 additions and 1 deletions
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2
sound/pci/hda/hda_generic.c
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@ -854,7 +854,7 @@ static int add_control_with_pfx(struct hda_gen_spec *spec, int type,
const char *pfx, const char *dir,
const char *sfx, int cidx, unsigned long val)
{
char name[32];
char name[44];
snprintf(name, sizeof(name), "%s %s %s", pfx, dir, sfx);
if (!add_control(spec, type, name, cidx, val))
return -ENOMEM;