[ALSA] usb-audio - Add a proper error check
The error in check_hw_params_convention() has to be checked and
handled properly.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/usb/usbaudio.c b/sound/usb/usbaudio.c
index f48838a..5c40c03 100644
--- a/sound/usb/usbaudio.c
+++ b/sound/usb/usbaudio.c
@@ -1762,8 +1762,10 @@
channels = kcalloc(MAX_MASK, sizeof(u32), GFP_KERNEL);
rates = kcalloc(MAX_MASK, sizeof(u32), GFP_KERNEL);
- if (!channels || !rates)
+ if (!channels || !rates) {
+ err = -ENOMEM;
goto __out;
+ }
list_for_each(p, &subs->fmt_list) {
struct audioformat *f;
@@ -1916,7 +1918,10 @@
1000 * MIN_PACKS_URB,
/*(nrpacks * MAX_URBS) * 1000*/ UINT_MAX);
- if (check_hw_params_convention(subs)) {
+ err = check_hw_params_convention(subs);
+ if (err < 0)
+ return err;
+ else if (err) {
hwc_debug("setting extra hw constraints...\n");
if ((err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
hw_rule_rate, subs,