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GPU-DRM: Use kmalloc_array() in drm_legacy_addbufs_pci()
author
Markus Elfring
<elfring@users.sourceforge.net>
Mon, 19 Sep 2016 15:07:06 +0000
(17:07 +0200)
committer
Daniel Vetter
<daniel.vetter@ffwll.ch>
Wed, 21 Sep 2016 11:24:27 +0000
(13:24 +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@users.sourceforge.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link:
http://patchwork.freedesktop.org/patch/msgid/b71c8fee-8e84-9f1b-8569-f1ae8b879cc5@users.sourceforge.net
drivers/gpu/drm/drm_bufs.c
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diff --git
a/drivers/gpu/drm/drm_bufs.c
b/drivers/gpu/drm/drm_bufs.c
index
3219151
..
ed33f43
100644
(file)
--- a/
drivers/gpu/drm/drm_bufs.c
+++ b/
drivers/gpu/drm/drm_bufs.c
@@
-923,8
+923,9
@@
int drm_legacy_addbufs_pci(struct drm_device *dev,
/* Keep the original pagelist until we know all the allocations
* have succeeded
*/
- temp_pagelist = kmalloc((dma->page_count + (count << page_order)) *
- sizeof(*dma->pagelist), GFP_KERNEL);
+ temp_pagelist = kmalloc_array(dma->page_count + (count << page_order),
+ sizeof(*dma->pagelist),
+ GFP_KERNEL);
if (!temp_pagelist) {
kfree(entry->buflist);
kfree(entry->seglist);