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drivers: use kzalloc/kcalloc instead of 'kmalloc+memset', where possible

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Signed-off-by: Rakib Mullick <rakib.mullick@gmail.com>
Cc: Jeff Garzik <jgarzik@pobox.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Tejun Heo <tj@kernel.org>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Rakib Mullick
2011-07-25 17:12:56 -07:00
committed by Linus Torvalds
parent f1c93e4946
commit f35119d668
6 changed files with 10 additions and 20 deletions
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10
drivers/gpu/drm/drm_scatter.c
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@@ -83,30 +83,26 @@ int drm_sg_alloc(struct drm_device *dev, struct drm_scatter_gather * request)
if (dev->sg)
return -EINVAL;
entry = kmalloc(sizeof(*entry), GFP_KERNEL);
entry = kzalloc(sizeof(*entry), GFP_KERNEL);
if (!entry)
return -ENOMEM;
memset(entry, 0, sizeof(*entry));
pages = (request->size + PAGE_SIZE - 1) / PAGE_SIZE;
DRM_DEBUG("size=%ld pages=%ld\n", request->size, pages);
entry->pages = pages;
entry->pagelist = kmalloc(pages * sizeof(*entry->pagelist), GFP_KERNEL);
entry->pagelist = kcalloc(pages, sizeof(*entry->pagelist), GFP_KERNEL);
if (!entry->pagelist) {
kfree(entry);
return -ENOMEM;
}
memset(entry->pagelist, 0, pages * sizeof(*entry->pagelist));
entry->busaddr = kmalloc(pages * sizeof(*entry->busaddr), GFP_KERNEL);
entry->busaddr = kcalloc(pages, sizeof(*entry->busaddr), GFP_KERNEL);
if (!entry->busaddr) {
kfree(entry->pagelist);
kfree(entry);
return -ENOMEM;
}
memset((void *)entry->busaddr, 0, pages * sizeof(*entry->busaddr));
entry->virtual = drm_vmalloc_dma(pages << PAGE_SHIFT);
if (!entry->virtual) {