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| author | Colin Ian King <colin.king@canonical.com> | 2018-03-27 16:30:01 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2018-03-27 17:45:33 +0200 |
| commit | 623760257b39632ffc5051fc88167b546dcfa791 (patch) | |
| tree | 3e4955b7b0da1e0b323b3c55e36ebe8af9a47bc7 /sound/usb/mixer.c | |
| parent | ALSA: pcm: Fix mutex unbalance in OSS emulation ioctls (diff) | |
| download | linux-623760257b39632ffc5051fc88167b546dcfa791.tar.xz linux-623760257b39632ffc5051fc88167b546dcfa791.zip | |
ALSA: usb-audio: fix memory leak on cval
With the current exit return path of the ctl_info allocation failure
cval is not being freed resulting in a memory leak. Fix this by kfree'ing
it on the return.
Detected by CoverityScan, CID#1466878 ("Resource Leak")
Fixes: 21e9b3e931f7 ("ALSA: usb-audio: fix uac control query argument")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/usb/mixer.c')
| -rw-r--r-- | sound/usb/mixer.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c index 04dab6f65535..301ad61ed426 100644 --- a/sound/usb/mixer.c +++ b/sound/usb/mixer.c @@ -1365,8 +1365,10 @@ static void build_feature_ctl(struct mixer_build *state, void *raw_desc, cval->cmask = ctl_mask; ctl_info = get_feature_control_info(control); - if (!ctl_info) + if (!ctl_info) { + kfree(cval); return; + } if (state->mixer->protocol == UAC_VERSION_1) cval->val_type = ctl_info->type; else /* UAC_VERSION_2 */ |