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authorDan Carpenter <dan.carpenter@oracle.com>2018-08-27 12:21:45 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-11-20 17:59:37 +0100
commitc9f373293e684acfcad234744beac67625b99b1b (patch)
tree3c9c7a5be61052b5bd5a8f01ac316b09a5c1f450 /sound
parent284183a0f4b84da89e9a514146792d7f006daf9c (diff)
ALSA: pcm: signedness bug in snd_pcm_plug_alloc()
[ Upstream commit 6f128fa41f310e1f39ebcea9621d2905549ecf52 ] The "frames" variable is unsigned so the error handling doesn't work properly. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'sound')
-rw-r--r--sound/core/oss/pcm_plugin.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/sound/core/oss/pcm_plugin.c b/sound/core/oss/pcm_plugin.c
index 617845d4a811..b8ab46b8298d 100644
--- a/sound/core/oss/pcm_plugin.c
+++ b/sound/core/oss/pcm_plugin.c
@@ -111,7 +111,7 @@ int snd_pcm_plug_alloc(struct snd_pcm_substream *plug, snd_pcm_uframes_t frames)
while (plugin->next) {
if (plugin->dst_frames)
frames = plugin->dst_frames(plugin, frames);
- if (snd_BUG_ON(frames <= 0))
+ if (snd_BUG_ON((snd_pcm_sframes_t)frames <= 0))
return -ENXIO;
plugin = plugin->next;
err = snd_pcm_plugin_alloc(plugin, frames);
@@ -123,7 +123,7 @@ int snd_pcm_plug_alloc(struct snd_pcm_substream *plug, snd_pcm_uframes_t frames)
while (plugin->prev) {
if (plugin->src_frames)
frames = plugin->src_frames(plugin, frames);
- if (snd_BUG_ON(frames <= 0))
+ if (snd_BUG_ON((snd_pcm_sframes_t)frames <= 0))
return -ENXIO;
plugin = plugin->prev;
err = snd_pcm_plugin_alloc(plugin, frames);