[patch] staging: bcm2835-audio: allocate enough data for work queues

Dan Carpenter
2017-02-14T23:15:44Z

We accidentally allocate sizeof(void *) bytes instead of 112 bytes. It
results in memory corruption.

Fixes: 23b028c871e1 ("staging: bcm2835-audio: initial staging submission")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

diff --git a/drivers/staging/bcm2835-audio/bcm2835-vchiq.c b/drivers/staging/bcm2835-audio/bcm2835-vchiq.c
index d11f2cdd1014..f5c6a83569f3 100644
--- a/drivers/staging/bcm2835-audio/bcm2835-vchiq.c
+++ b/drivers/staging/bcm2835-audio/bcm2835-vchiq.c
@@ -134,8 +134,9 @@ int bcm2835_audio_start(struct bcm2835_alsa_stream *alsa_stream)
int ret = -1;
LOG_DBG(" .. IN\n");
if (alsa_stream->my_wq) {
- struct bcm2835_audio_work *work - kmalloc(sizeof(struct bcm2835_audio_work *), GFP_ATOMIC);
+ struct bcm2835_audio_work *work;
+
+ work = kmalloc(sizeof(*work), GFP_ATOMIC);
/*--- Queue some work (item 1) ---*/
if (work) {
INIT_WORK(&work->my_work, my_wq_function);
@@ -155,8 +156,9 @@ int bcm2835_audio_stop(struct bcm2835_alsa_stream *alsa_stream)
int ret = -1;
LOG_DBG(" .. IN\n");
if (alsa_stream->my_wq) {
- struct bcm2835_audio_work *work - kmalloc(sizeof(struct bcm2835_audio_work *), GFP_ATOMIC);
+ struct bcm2835_audio_work *work;
+
+ work = kmalloc(sizeof(*work), GFP_ATOMIC);
/*--- Queue some work (item 1) ---*/
if (work) {
INIT_WORK(&work->my_work, my_wq_function);
@@ -177,8 +179,9 @@ int bcm2835_audio_write(struct bcm2835_alsa_stream *alsa_stream,
int ret = -1;
LOG_DBG(" .. IN\n");
if (alsa_stream->my_wq) {
- struct bcm2835_audio_work *work - kmalloc(sizeof(struct bcm2835_audio_work *), GFP_ATOMIC);
+ struct bcm2835_audio_work *work;
+
+ work = kmalloc(sizeof(*work), GFP_ATOMIC);
/*--- Queue some work (item 1) ---*/
if (work) {
INIT_WORK(&work->my_work, my_wq_function);