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authorDan Carpenter <error27@gmail.com>2010-08-27 22:02:15 +0200
committerTakashi Iwai <tiwai@suse.de>2010-08-28 11:59:33 +0200
commit7a28826ac73d31a379d93785d8fbd24ab492b0bd (patch)
tree3b3af569f7451b45941f9089494eb30487b7cb6f /sound
parent3182c8a72b31414e043184a97b0d5d3c0d590168 (diff)
downloadlinux-linaro-android-7a28826ac73d31a379d93785d8fbd24ab492b0bd.tar.gz
ALSA: pcm: add more format names
There were some new formats added in commit 15c0cee6c809 "ALSA: pcm: Define G723 3-bit and 5-bit formats". That commit increased SNDRV_PCM_FORMAT_LAST as well. My concern is that there are a couple places which do: for (i = 0; i < SNDRV_PCM_FORMAT_LAST; i++) { if (dummy->pcm_hw.formats & (1ULL << i)) snd_iprintf(buffer, " %s", snd_pcm_format_name(i)); } I haven't tested these but it looks like if "i" were equal to SNDRV_PCM_FORMAT_G723_24 or higher then we might read past the end of the array. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound')
-rw-r--r--sound/core/pcm.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/sound/core/pcm.c b/sound/core/pcm.c
index cbe815dfbdc..204af48c5cc 100644
--- a/sound/core/pcm.c
+++ b/sound/core/pcm.c
@@ -203,10 +203,16 @@ static char *snd_pcm_format_names[] = {
FORMAT(S18_3BE),
FORMAT(U18_3LE),
FORMAT(U18_3BE),
+ FORMAT(G723_24),
+ FORMAT(G723_24_1B),
+ FORMAT(G723_40),
+ FORMAT(G723_40_1B),
};
const char *snd_pcm_format_name(snd_pcm_format_t format)
{
+ if (format >= ARRAY_SIZE(snd_pcm_format_names))
+ return "Unknown";
return snd_pcm_format_names[format];
}
EXPORT_SYMBOL_GPL(snd_pcm_format_name);