[PATCH 01/14] GPU-DRM-OMAP: Use kmalloc_array() in tiler_map_show()

From: SF Markus Elfring
Date: Wed Sep 21 2016 - 12:38:43 EST


From: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
Date: Wed, 21 Sep 2016 12:23:46 +0200

A multiplication for the size determination of a memory allocation
indicated that an array data structure should be processed.
Thus use the corresponding function "kmalloc_array".

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/omapdrm/omap_dmm_tiler.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/omapdrm/omap_dmm_tiler.c b/drivers/gpu/drm/omapdrm/omap_dmm_tiler.c
index 4ceed7a9..7b32dd3 100644
--- a/drivers/gpu/drm/omapdrm/omap_dmm_tiler.c
+++ b/drivers/gpu/drm/omapdrm/omap_dmm_tiler.c
@@ -917,8 +917,7 @@ int tiler_map_show(struct seq_file *s, void *arg)

h_adj = omap_dmm->container_height / ydiv;
w_adj = omap_dmm->container_width / xdiv;
-
- map = kmalloc(h_adj * sizeof(*map), GFP_KERNEL);
+ map = kmalloc_array(h_adj, sizeof(*map), GFP_KERNEL);
global_map = kmalloc((w_adj + 1) * h_adj, GFP_KERNEL);

if (!map || !global_map)
--
2.10.0