diff mbox series

[v2,8/8] dma-buf: use krealloc_array()

Message ID 20201102152037.963-9-brgl@bgdev.pl
State New
Headers show
Series slab: provide and use krealloc_array() | expand

Commit Message

Bartosz Golaszewski Nov. 2, 2020, 3:20 p.m. UTC
From: Bartosz Golaszewski <bgolaszewski@baylibre.com>

Use the helper that checks for overflows internally instead of manually
calculating the size of the new array.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Acked-by: Christian K├Ânig <christian.koenig@amd.com>
---
 drivers/dma-buf/sync_file.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Comments

Andy Shevchenko Nov. 2, 2020, 4:10 p.m. UTC | #1
On Mon, Nov 02, 2020 at 04:20:37PM +0100, Bartosz Golaszewski wrote:
> From: Bartosz Golaszewski <bgolaszewski@baylibre.com>
> 
> Use the helper that checks for overflows internally instead of manually
> calculating the size of the new array.

...

> +		nfences = krealloc_array(fences, i,
> +					 sizeof(*fences), GFP_KERNEL);

On 80 position is closing parenthesis, which, I think, makes it okay to put on
one line.
diff mbox series

Patch

diff --git a/drivers/dma-buf/sync_file.c b/drivers/dma-buf/sync_file.c
index 5a5a1da01a00..2925ea03eef0 100644
--- a/drivers/dma-buf/sync_file.c
+++ b/drivers/dma-buf/sync_file.c
@@ -270,8 +270,8 @@  static struct sync_file *sync_file_merge(const char *name, struct sync_file *a,
 		fences[i++] = dma_fence_get(a_fences[0]);
 
 	if (num_fences > i) {
-		nfences = krealloc(fences, i * sizeof(*fences),
-				  GFP_KERNEL);
+		nfences = krealloc_array(fences, i,
+					 sizeof(*fences), GFP_KERNEL);
 		if (!nfences)
 			goto err;