From: Jim Meyering <jim@meyering.net>

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

Signed-off-by: Jim Meyering <meyering@redhat.com>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 sound/usb/usbaudio.c |    2 ++
 1 file changed, 2 insertions(+)

diff -puN sound/usb/usbaudio.c~usbaudio-handle-kcalloc-failure sound/usb/usbaudio.c
--- a/sound/usb/usbaudio.c~usbaudio-handle-kcalloc-failure
+++ a/sound/usb/usbaudio.c
@@ -1735,6 +1735,8 @@ static int check_hw_params_convention(st
 
 	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;
_