[PATCH 1/1] video: udlfb: Deletion of unnecessary checks before the function call "vfree"

SF Markus Elfring
2014-11-23T10:44:51Z

From: Markus Elfring <elfring@users.sourceforge.net>
Date: Sun, 23 Nov 2014 11:40:47 +0100

The vfree() function performs also input parameter validation. Thus the test
around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
drivers/video/fbdev/udlfb.c | 9 +++------
1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/drivers/video/fbdev/udlfb.c b/drivers/video/fbdev/udlfb.c
index 77b890e..01fff0c 100644
--- a/drivers/video/fbdev/udlfb.c
+++ b/drivers/video/fbdev/udlfb.c
@@ -922,8 +922,7 @@ static void dlfb_free(struct kref *kref)
{
struct dlfb_data *dev = container_of(kref, struct dlfb_data, kref);

- if (dev->backing_buffer)
- vfree(dev->backing_buffer);
+ vfree(dev->backing_buffer);

kfree(dev->edid);

@@ -953,8 +952,7 @@ static void dlfb_free_framebuffer(struct dlfb_data *dev)
fb_dealloc_cmap(&info->cmap);
if (info->monspecs.modedb)
fb_destroy_modedb(info->monspecs.modedb);
- if (info->screen_base)
- vfree(info->screen_base);
+ vfree(info->screen_base);

fb_destroy_modelist(&info->modelist);

@@ -1203,8 +1201,7 @@ static int dlfb_realloc_framebuffer(struct dlfb_data *dev, struct fb_info *info)
if (!new_back)
pr_info("No shadow/backing buffer allocated\n");
else {
- if (dev->backing_buffer)
- vfree(dev->backing_buffer);
+ vfree(dev->backing_buffer);
dev->backing_buffer = new_back;
}
}
--
2.1.3