* [PATCH] Staging: lustre: obdclass: Use kcalloc instead of kzalloc
@ 2017-09-14 12:06 Srishti Sharma
2017-09-14 12:30 ` [Outreachy kernel] " Julia Lawall
0 siblings, 1 reply; 2+ messages in thread
From: Srishti Sharma @ 2017-09-14 12:06 UTC (permalink / raw)
To: oleg.drokin
Cc: andreas.dilger, jsimmons, gregkh, devel, linux-kernel,
outreachy-kernel, Srishti Sharma
Use kcalloc instead of kzalloc to check for overflow before
multiplication. Done using the following semantic patch by
coccinelle.
http://coccinelle.lip6.fr/rules/kzalloc.cocci
Signed-off-by: Srishti Sharma <srishtishar@gmail.com>
---
drivers/staging/lustre/lustre/obdclass/cl_object.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/staging/lustre/lustre/obdclass/cl_object.c b/drivers/staging/lustre/lustre/obdclass/cl_object.c
index 95c7fa3..28cb8489 100644
--- a/drivers/staging/lustre/lustre/obdclass/cl_object.c
+++ b/drivers/staging/lustre/lustre/obdclass/cl_object.c
@@ -1016,7 +1016,7 @@ int cl_global_init(void)
{
int result;
- cl_envs = kzalloc(sizeof(*cl_envs) * num_possible_cpus(), GFP_KERNEL);
+ cl_envs = kcalloc(num_possible_cpus(), sizeof(*cl_envs), GFP_KERNEL);
if (!cl_envs) {
result = -ENOMEM;
goto out;
--
2.7.4
^ permalink raw reply [flat|nested] 2+ messages in thread* Re: [Outreachy kernel] [PATCH] Staging: lustre: obdclass: Use kcalloc instead of kzalloc
2017-09-14 12:06 [PATCH] Staging: lustre: obdclass: Use kcalloc instead of kzalloc Srishti Sharma
@ 2017-09-14 12:30 ` Julia Lawall
0 siblings, 0 replies; 2+ messages in thread
From: Julia Lawall @ 2017-09-14 12:30 UTC (permalink / raw)
To: Srishti Sharma
Cc: oleg.drokin, andreas.dilger, jsimmons, gregkh, devel,
linux-kernel, outreachy-kernel
On Thu, 14 Sep 2017, Srishti Sharma wrote:
> Use kcalloc instead of kzalloc to check for overflow before
> multiplication. Done using the following semantic patch by
> coccinelle.
>
> http://coccinelle.lip6.fr/rules/kzalloc.cocci
>
> Signed-off-by: Srishti Sharma <srishtishar@gmail.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
> ---
> drivers/staging/lustre/lustre/obdclass/cl_object.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/staging/lustre/lustre/obdclass/cl_object.c b/drivers/staging/lustre/lustre/obdclass/cl_object.c
> index 95c7fa3..28cb8489 100644
> --- a/drivers/staging/lustre/lustre/obdclass/cl_object.c
> +++ b/drivers/staging/lustre/lustre/obdclass/cl_object.c
> @@ -1016,7 +1016,7 @@ int cl_global_init(void)
> {
> int result;
>
> - cl_envs = kzalloc(sizeof(*cl_envs) * num_possible_cpus(), GFP_KERNEL);
> + cl_envs = kcalloc(num_possible_cpus(), sizeof(*cl_envs), GFP_KERNEL);
> if (!cl_envs) {
> result = -ENOMEM;
> goto out;
> --
> 2.7.4
>
> --
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^ permalink raw reply [flat|nested] 2+ messages in thread
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2017-09-14 12:30 ` [Outreachy kernel] " Julia Lawall
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