[PATCH] usbaudio: handle kcalloc failure

[Jim Meyering]

* sound/usb/usbaudio.c (check_hw_params_convention): Handle kcalloc failure.

Signed-off-by: Jim Meyering <meyering@xxxxxxxxxx>
---
 sound/usb/usbaudio.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/sound/usb/usbaudio.c b/sound/usb/usbaudio.c
index 8fa9356..b61533d 100644
--- a/sound/usb/usbaudio.c
+++ b/sound/usb/usbaudio.c
@@ -1735,6 +1735,8 @@ static int check_hw_params_convention(struct snd_usb_substream *subs)

 	channels = kcalloc(MAX_MASK, sizeof(u32), GFP_KERNEL);
 	rates = kcalloc(MAX_MASK, sizeof(u32), GFP_KERNEL);
+	if (!channels || !rates)
+		goto __out;

 	list_for_each(p, &subs->fmt_list) {
 		struct audioformat *f;
-- 
1.5.4.2.134.g82883

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