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Diffstat (limited to 'sound/pci/mixart/mixart_core.c')
-rw-r--r--sound/pci/mixart/mixart_core.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/sound/pci/mixart/mixart_core.c b/sound/pci/mixart/mixart_core.c
index fb8895af0363..a047ed0f84e9 100644
--- a/sound/pci/mixart/mixart_core.c
+++ b/sound/pci/mixart/mixart_core.c
@@ -23,8 +23,6 @@
#define MSG_DESCRIPTOR_SIZE 0x24
#define MSG_HEADER_SIZE (MSG_DESCRIPTOR_SIZE + 4)
-#define MSG_DEFAULT_SIZE 512
-
#define MSG_TYPE_MASK 0x00000003 /* mask for following types */
#define MSG_TYPE_NOTIFY 0 /* embedded -> driver (only notification, do not get_msg() !) */
#define MSG_TYPE_COMMAND 1 /* driver <-> embedded (a command has no answer) */
@@ -444,6 +442,9 @@ irqreturn_t snd_mixart_threaded_irq(int irq, void *dev_id)
struct mixart_timer_notify *notify;
notify = (struct mixart_timer_notify *)mixart_msg_data;
+ BUILD_BUG_ON(sizeof(notify) > sizeof(mixart_msg_data));
+ if (snd_BUG_ON(notify->stream_count > ARRAY_SIZE(notify->streams)))
+ break;
for(i=0; i<notify->stream_count; i++) {
u32 buffer_id = notify->streams[i].buffer_id;