2021-06-01 14:08:38

by Zheng Yongjun

Subject: [PATCH -next] media: atomisp: Remove unneeded if-null-free check

Eliminate the following coccicheck warning:

drivers/staging/media/atomisp/pci/sh_css_firmware.c:369:4-10: WARNING:
NULL check before some freeing functions is not needed.

Signed-off-by: Zheng Yongjun <[email protected]>
---
drivers/staging/media/atomisp/pci/sh_css_firmware.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/staging/media/atomisp/pci/sh_css_firmware.c b/drivers/staging/media/atomisp/pci/sh_css_firmware.c
index f4ce8ace9d50..980fc09fcc8b 100644
--- a/drivers/staging/media/atomisp/pci/sh_css_firmware.c
+++ b/drivers/staging/media/atomisp/pci/sh_css_firmware.c
@@ -365,8 +365,7 @@ void sh_css_unload_firmware(void)
for (i = 0; i < sh_css_num_binaries; i++) {
if (fw_minibuffer[i].name)
kfree((void *)fw_minibuffer[i].name);
- if (fw_minibuffer[i].buffer)
- kvfree(fw_minibuffer[i].buffer);
+ kvfree(fw_minibuffer[i].buffer);
}
kfree(fw_minibuffer);
fw_minibuffer = NULL;
--
2.25.1

2021-06-01 14:49:53

by Dan Carpenter

Subject: Re: [PATCH -next] media: atomisp: Remove unneeded if-null-free check

On Tue, Jun 01, 2021 at 10:20:05PM +0800, Zheng Yongjun wrote:
> Eliminate the following coccicheck warning:
>
> drivers/staging/media/atomisp/pci/sh_css_firmware.c:369:4-10: WARNING:
> NULL check before some freeing functions is not needed.
>
> Signed-off-by: Zheng Yongjun <[email protected]>
> ---
> drivers/staging/media/atomisp/pci/sh_css_firmware.c | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/drivers/staging/media/atomisp/pci/sh_css_firmware.c b/drivers/staging/media/atomisp/pci/sh_css_firmware.c
> index f4ce8ace9d50..980fc09fcc8b 100644
> --- a/drivers/staging/media/atomisp/pci/sh_css_firmware.c
> +++ b/drivers/staging/media/atomisp/pci/sh_css_firmware.c
> @@ -365,8 +365,7 @@ void sh_css_unload_firmware(void)
> for (i = 0; i < sh_css_num_binaries; i++) {
> if (fw_minibuffer[i].name)
> kfree((void *)fw_minibuffer[i].name);

Change this too.

> - if (fw_minibuffer[i].buffer)
> - kvfree(fw_minibuffer[i].buffer);
> + kvfree(fw_minibuffer[i].buffer);
> }
> kfree(fw_minibuffer);
> fw_minibuffer = NULL;

regards,
dan carpenter

2021-06-02 02:11:56

by Zheng Yongjun

Subject: 答复: [PATCH -next] media: atomisp: Remove un needed if-null-free check

Thanks for your advice, I send patch v2 now :)

-----?ʼ?ԭ??-----
??????: Dan Carpenter [mailto:[email protected]]
????ʱ??: 2021??6??1?? 22:47
?ռ???: zhengyongjun <[email protected]>
????: [email protected]; [email protected]; [email protected]; [email protected]; [email protected]; [email protected]
????: Re: [PATCH -next] media: atomisp: Remove unneeded if-null-free check

On Tue, Jun 01, 2021 at 10:20:05PM +0800, Zheng Yongjun wrote:
> Eliminate the following coccicheck warning:
>
> drivers/staging/media/atomisp/pci/sh_css_firmware.c:369:4-10: WARNING:
> NULL check before some freeing functions is not needed.
>
> Signed-off-by: Zheng Yongjun <[email protected]>
> ---
> drivers/staging/media/atomisp/pci/sh_css_firmware.c | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/drivers/staging/media/atomisp/pci/sh_css_firmware.c b/drivers/staging/media/atomisp/pci/sh_css_firmware.c
> index f4ce8ace9d50..980fc09fcc8b 100644
> --- a/drivers/staging/media/atomisp/pci/sh_css_firmware.c
> +++ b/drivers/staging/media/atomisp/pci/sh_css_firmware.c
> @@ -365,8 +365,7 @@ void sh_css_unload_firmware(void)
> for (i = 0; i < sh_css_num_binaries; i++) {
> if (fw_minibuffer[i].name)
> kfree((void *)fw_minibuffer[i].name);

Change this too.

> - if (fw_minibuffer[i].buffer)
> - kvfree(fw_minibuffer[i].buffer);
> + kvfree(fw_minibuffer[i].buffer);
> }
> kfree(fw_minibuffer);
> fw_minibuffer = NULL;

regards,
dan carpenter