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

From: SF Markus Elfring
Date: Mon Jul 06 2015 - 04:01:30 EST


From: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
Date: Mon, 6 Jul 2015 09:49:11 +0200

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@xxxxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
index 654c8da..f718a6d 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
@@ -2292,9 +2292,7 @@ static int vmw_resize_cmd_bounce(struct vmw_sw_context *sw_context,
(sw_context->cmd_bounce_size >> 1));
}

- if (sw_context->cmd_bounce != NULL)
- vfree(sw_context->cmd_bounce);
-
+ vfree(sw_context->cmd_bounce);
sw_context->cmd_bounce = vmalloc(sw_context->cmd_bounce_size);

if (sw_context->cmd_bounce == NULL) {
--
2.4.5

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/