From mboxrd@z Thu Jan 1 00:00:00 1970 From: SF Markus Elfring Date: Sun, 23 Nov 2014 10:44:51 +0000 Subject: [PATCH 1/1] video: udlfb: Deletion of unnecessary checks before the function call "vfree" Message-Id: <5471BAA3.3010409@users.sourceforge.net> List-Id: References: <5307CAA2.8060406@users.sourceforge.net> <530A086E.8010901@users.sourceforge.net> <530A72AA.3000601@users.sourceforge.net> <530B5FB6.6010207@users.sourceforge.net> <530C5E18.1020800@users.sourceforge.net> <530CD2C4.4050903@users.sourceforge.net> <530CF8FF.8080600@users.sourceforge.net> <530DD06F.4090703@users.sourceforge.net> <5317A59D.4@users.sourceforge.net> In-Reply-To: <5317A59D.4@users.sourceforge.net> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Jean-Christophe Plagniol-Villard , Tomi Valkeinen , linux-fbdev@vger.kernel.org Cc: LKML , kernel-janitors@vger.kernel.org, Julia Lawall From: Markus Elfring 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 --- 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