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authorJens Axboe <jaxboe@fusionio.com>2010-10-19 09:13:04 +0200
committerJens Axboe <jaxboe@fusionio.com>2010-10-19 09:13:04 +0200
commitfa251f89903d73989e2f63e13d0eaed1e07ce0da (patch)
tree3f7fe779941e3b6d67754dd7c44a32f48ea47c74 /sound/core/control.c
parentdd3932eddf428571762596e17b65f5dc92ca361b (diff)
parentcd07202cc8262e1669edff0d97715f3dd9260917 (diff)
Merge branch 'v2.6.36-rc8' into for-2.6.37/barrier
Conflicts: block/blk-core.c drivers/block/loop.c mm/swapfile.c Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
Diffstat (limited to 'sound/core/control.c')
-rw-r--r--sound/core/control.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/sound/core/control.c b/sound/core/control.c
index 070aab490191..45a818002d99 100644
--- a/sound/core/control.c
+++ b/sound/core/control.c
@@ -31,6 +31,7 @@
/* max number of user-defined controls */
#define MAX_USER_CONTROLS 32
+#define MAX_CONTROL_COUNT 1028
struct snd_kctl_ioctl {
struct list_head list; /* list of all ioctls */
@@ -195,6 +196,10 @@ static struct snd_kcontrol *snd_ctl_new(struct snd_kcontrol *control,
if (snd_BUG_ON(!control || !control->count))
return NULL;
+
+ if (control->count > MAX_CONTROL_COUNT)
+ return NULL;
+
kctl = kzalloc(sizeof(*kctl) + sizeof(struct snd_kcontrol_volatile) * control->count, GFP_KERNEL);
if (kctl == NULL) {
snd_printk(KERN_ERR "Cannot allocate control instance\n");