On 20.07.2012 13:17, Dan Carpenter wrote:
Static checkers complain if this we don't check for allocation failure.
Also we can use the new kmalloc_array() function here as a cleanup.
Signed-off-by: Dan Carpenter <[email protected]>
What's the benefit of using kmalloc_array instead of just kmalloc?
Anyway it's:
Reviewed-by: Christian König <[email protected]>
diff --git a/drivers/gpu/drm/radeon/radeon_ring.c
b/drivers/gpu/drm/radeon/radeon_ring.c
index 75cbe46..5a0ef24 100644
--- a/drivers/gpu/drm/radeon/radeon_ring.c
+++ b/drivers/gpu/drm/radeon/radeon_ring.c
@@ -402,7 +402,11 @@ unsigned radeon_ring_backup(struct radeon_device *rdev,
struct radeon_ring *ring
}
/* and then save the content of the ring */
- *data = kmalloc(size * 4, GFP_KERNEL);
+ *data = kmalloc_array(size, sizeof(uint32_t), GFP_KERNEL);
+ if (!*data) {
+ mutex_unlock(&rdev->ring_lock);
+ return 0;
+ }
for (i = 0; i < size; ++i) {
(*data)[i] = ring->ring[ptr++];
ptr &= ring->ptr_mask;
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