2018-12-03 06:44:22

by Wen Yang

[permalink] [raw]
Subject: [PATCH] fbdev: fsl-diu: remove redundant null check on cmap

The null check on &info->cmap is redundant since cmap is a struct
inside fb_info and can never be null, so the check is always true.
we may remove it.

Signed-off-by: Wen Yang <[email protected]>
CC: Timur Tabi <[email protected]>
CC: Bartlomiej Zolnierkiewicz <[email protected]>
CC: [email protected]
CC: [email protected]
CC: [email protected]
---
drivers/video/fbdev/fsl-diu-fb.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/video/fbdev/fsl-diu-fb.c b/drivers/video/fbdev/fsl-diu-fb.c
index 332a56b6811f..9a5451ba4d44 100644
--- a/drivers/video/fbdev/fsl-diu-fb.c
+++ b/drivers/video/fbdev/fsl-diu-fb.c
@@ -1575,8 +1575,7 @@ static void uninstall_fb(struct fb_info *info)

unregister_framebuffer(info);
unmap_video_memory(info);
- if (&info->cmap)
- fb_dealloc_cmap(&info->cmap);
+ fb_dealloc_cmap(&info->cmap);

mfbi->registered = 0;
}
--
2.19.1



2018-12-03 14:55:03

by Timur Tabi

[permalink] [raw]
Subject: Re: [PATCH] fbdev: fsl-diu: remove redundant null check on cmap

On 12/3/18 12:43 AM, Wen Yang wrote:
> The null check on &info->cmap is redundant since cmap is a struct
> inside fb_info and can never be null, so the check is always true.
> we may remove it.
>
> Signed-off-by: Wen Yang<[email protected]>

Acked-by: Timur Tabi <[email protected]>

Subject: Re: [PATCH] fbdev: fsl-diu: remove redundant null check on cmap


On 12/03/2018 03:53 PM, Timur Tabi wrote:
> On 12/3/18 12:43 AM, Wen Yang wrote:
>> The null check on &info->cmap is redundant since cmap is a struct
>> inside fb_info and can never be null, so the check is always true.
>> we may remove it.
>>
>> Signed-off-by: Wen Yang<[email protected]>
>
> Acked-by: Timur Tabi <[email protected]>

Patch queued for 4.21, thanks.

Best regards,
--
Bartlomiej Zolnierkiewicz
Samsung R&D Institute Poland
Samsung Electronics