Re: [PATCH 1/1] DRM-vmwgfx: Deletion of an unnecessary check before the function call "vfree"

From: Thierry Reding
Date: Wed Nov 19 2014 - 23:22:48 EST

On November 19, 2014 5:57:13 PM SF Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx> wrote:
From: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
Date: Wed, 19 Nov 2014 17:50:19 +0100

The vfree() function performes 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@xxxxxxxxxxxxxxxxxxxxx>
drivers/gpu/drm/vmwgfx/vmwgfx_drv.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
index 14b2f50..f9a67b8 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
@@ -889,8 +889,7 @@ static int vmw_driver_unload(struct drm_device *dev)

if (dev_priv->ctx.res_ht_initialized)
- if (dev_priv->ctx.cmd_bounce)
- vfree(dev_priv->ctx.cmd_bounce);
+ vfree(dev_priv->ctx.cmd_bounce);
if (dev_priv->enable_fb) {

Reviewed-by: Thierry Reding <thierry.reding@xxxxxxxxx>

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