From ff17e953cb70e37ceb7b487113a0a37441052219 Mon Sep 17 00:00:00 2001
From: Jim Meyering <jim@meyering.net>
Date: Tue, 4 Mar 2008 15:25:11 -0800
Subject: [PATCH] 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>
---
 sound/usb/usbaudio.c | 2 ++
 1 file changed, 2 insertions(+)

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;
-- 
2.20.1