diff mbox series

tools/testing/nvdimm: NULL check before vfree() is not needed

Message ID 20210625072700.22662-1-13145886936@163.com (mailing list archive)
State New, archived
Headers show
Series tools/testing/nvdimm: NULL check before vfree() is not needed | expand

Commit Message

gushengxian June 25, 2021, 7:27 a.m. UTC
From: gushengxian <gushengxian@yulong.com>

NULL check before vfree() is not needed.

Signed-off-by: gushengxian <gushengxian@yulong.com>
---
 tools/testing/nvdimm/test/nfit.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Comments

Alison Schofield June 25, 2021, 5:37 p.m. UTC | #1
Hi Gushengxian,

The code change looks good.  A couple of cleanups noted below...
(same feedback on next patch too)


On Fri, Jun 25, 2021 at 12:27:00AM -0700, 13145886936@163.com wrote:
> From: gushengxian <gushengxian@yulong.com>
> 
> NULL check before vfree() is not needed.

The commit message needs to say what was done, not the why.
Example: "[PATCH] tools/testing/nvdimm: Remove NULL test before vfree"

Then, the commit log explains why this should be done.
Example: "This NULL test is redundant since vfree() checks for NULL."

Coccinelle reports this vfree() case. If you did use Coccinelle
to find it, please mention that in the commit log.
Example: "Reported by Coccinelle."

> 
> Signed-off-by: gushengxian <gushengxian@yulong.com>

The email addresses don't match (13145886936@163.com,
gushengxian@yulong.com) and it's not clear that you are using your
full, legal name in the 'name line.

You can find more info on this feedback at:
https://kernelnewbies.org/FirstKernelPatch
https://www.kernel.org/doc/html/latest/process/submitting-patches.html

Alison

> ---
>  tools/testing/nvdimm/test/nfit.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/tools/testing/nvdimm/test/nfit.c b/tools/testing/nvdimm/test/nfit.c
> index 54f367cbadae..cb86f0cbb11c 100644
> --- a/tools/testing/nvdimm/test/nfit.c
> +++ b/tools/testing/nvdimm/test/nfit.c
> @@ -1641,8 +1641,8 @@ static void *__test_alloc(struct nfit_test *t, size_t size, dma_addr_t *dma,
>   err:
>  	if (*dma && size >= DIMM_SIZE)
>  		gen_pool_free(nfit_pool, *dma, size);
> -	if (buf)
> -		vfree(buf);
> +
> +	vfree(buf);
>  	kfree(nfit_res);
>  	return NULL;
>  }
> -- 
> 2.25.1
> 
>
diff mbox series

Patch

diff --git a/tools/testing/nvdimm/test/nfit.c b/tools/testing/nvdimm/test/nfit.c
index 54f367cbadae..cb86f0cbb11c 100644
--- a/tools/testing/nvdimm/test/nfit.c
+++ b/tools/testing/nvdimm/test/nfit.c
@@ -1641,8 +1641,8 @@  static void *__test_alloc(struct nfit_test *t, size_t size, dma_addr_t *dma,
  err:
 	if (*dma && size >= DIMM_SIZE)
 		gen_pool_free(nfit_pool, *dma, size);
-	if (buf)
-		vfree(buf);
+
+	vfree(buf);
 	kfree(nfit_res);
 	return NULL;
 }