diff mbox series

[5/8] edac: ghes: use krealloc_array()

Message ID 20201027121725.24660-6-brgl@bgdev.pl
State Superseded
Headers show
Series slab: provide and use krealloc_array() | expand

Commit Message

Bartosz Golaszewski Oct. 27, 2020, 12:17 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>
---
 drivers/edac/ghes_edac.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Comments

Borislav Petkov Oct. 27, 2020, 6:25 p.m. UTC | #1
On Tue, Oct 27, 2020 at 01:17:22PM +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.

> 

> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>

> ---

>  drivers/edac/ghes_edac.c | 4 ++--

>  1 file changed, 2 insertions(+), 2 deletions(-)

> 

> diff --git a/drivers/edac/ghes_edac.c b/drivers/edac/ghes_edac.c

> index a918ca93e4f7..6d1ddecbf0da 100644

> --- a/drivers/edac/ghes_edac.c

> +++ b/drivers/edac/ghes_edac.c

> @@ -207,8 +207,8 @@ static void enumerate_dimms(const struct dmi_header *dh, void *arg)

>  	if (!hw->num_dimms || !(hw->num_dimms % 16)) {

>  		struct dimm_info *new;

>  

> -		new = krealloc(hw->dimms, (hw->num_dimms + 16) * sizeof(struct dimm_info),

> -			        GFP_KERNEL);

> +		new = krealloc_array(hw->dimms, hw->num_dimms + 16,

> +				     sizeof(struct dimm_info), GFP_KERNEL);

>  		if (!new) {

>  			WARN_ON_ONCE(1);

>  			return;

> -- 


Sure, why not.

Acked-by: Borislav Petkov <bp@suse.de>


-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette
diff mbox series

Patch

diff --git a/drivers/edac/ghes_edac.c b/drivers/edac/ghes_edac.c
index a918ca93e4f7..6d1ddecbf0da 100644
--- a/drivers/edac/ghes_edac.c
+++ b/drivers/edac/ghes_edac.c
@@ -207,8 +207,8 @@  static void enumerate_dimms(const struct dmi_header *dh, void *arg)
 	if (!hw->num_dimms || !(hw->num_dimms % 16)) {
 		struct dimm_info *new;
 
-		new = krealloc(hw->dimms, (hw->num_dimms + 16) * sizeof(struct dimm_info),
-			        GFP_KERNEL);
+		new = krealloc_array(hw->dimms, hw->num_dimms + 16,
+				     sizeof(struct dimm_info), GFP_KERNEL);
 		if (!new) {
 			WARN_ON_ONCE(1);
 			return;