USB: usbaudio: handle kcalloc failure

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

Signed-off-by: Jim Meyering <meyering@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 2 insertions, 0 deletions

diff --git a/sound/usb/usbaudio.c b/sound/usb/usbaudio.c
index 675672f313be..f48838a078cb 100644
--- a/sound/usb/usbaudio.c
+++ b/sound/usb/usbaudio.c
@@ -1762,6 +1762,8 @@ 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;