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authorRakib Mullick <rakib.mullick@gmail.com>2011-07-26 04:12:56 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2011-07-26 07:57:13 +0400
commitf35119d6681300ba6d76da53cb1ebc2eed62e77a (patch)
tree0dfd0d1bf9acf3e48791059b50bc68fff01c4db9 /drivers
parentf1c93e4946ae1cc268729451de6335a7e7d2bea9 (diff)
downloadlinux-f35119d6681300ba6d76da53cb1ebc2eed62e77a.tar.xz
drivers: use kzalloc/kcalloc instead of 'kmalloc+memset', where possible
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>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/ata/sata_dwc_460ex.c3
-rw-r--r--drivers/gpu/drm/drm_scatter.c10
-rw-r--r--drivers/gpu/drm/radeon/radeon_mem.c3
-rw-r--r--drivers/gpu/drm/vmwgfx/vmwgfx_overlay.c3
-rw-r--r--drivers/gpu/drm/vmwgfx/vmwgfx_resource.c8
-rw-r--r--drivers/gpu/vga/vgaarb.c3
6 files changed, 10 insertions, 20 deletions
diff --git a/drivers/ata/sata_dwc_460ex.c b/drivers/ata/sata_dwc_460ex.c
index b02c4ffa4db0..0a9a774a7e1e 100644
--- a/drivers/ata/sata_dwc_460ex.c
+++ b/drivers/ata/sata_dwc_460ex.c
@@ -1642,13 +1642,12 @@ static int sata_dwc_probe(struct platform_device *ofdev)
const struct ata_port_info *ppi[] = { &pi, NULL };
/* Allocate DWC SATA device */
- hsdev = kmalloc(sizeof(*hsdev), GFP_KERNEL);
+ hsdev = kzalloc(sizeof(*hsdev), GFP_KERNEL);
if (hsdev == NULL) {
dev_err(&ofdev->dev, "kmalloc failed for hsdev\n");
err = -ENOMEM;
goto error;
}
- memset(hsdev, 0, sizeof(*hsdev));
/* Ioremap SATA registers */
base = of_iomap(ofdev->dev.of_node, 0);
diff --git a/drivers/gpu/drm/drm_scatter.c b/drivers/gpu/drm/drm_scatter.c
index d15e09b0ae0b..7525e0311e59 100644
--- a/drivers/gpu/drm/drm_scatter.c
+++ b/drivers/gpu/drm/drm_scatter.c
@@ -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) {
diff --git a/drivers/gpu/drm/radeon/radeon_mem.c b/drivers/gpu/drm/radeon/radeon_mem.c
index ed95155c4b1d..988548efea92 100644
--- a/drivers/gpu/drm/radeon/radeon_mem.c
+++ b/drivers/gpu/drm/radeon/radeon_mem.c
@@ -139,7 +139,7 @@ static int init_heap(struct mem_block **heap, int start, int size)
if (!blocks)
return -ENOMEM;
- *heap = kmalloc(sizeof(**heap), GFP_KERNEL);
+ *heap = kzalloc(sizeof(**heap), GFP_KERNEL);
if (!*heap) {
kfree(blocks);
return -ENOMEM;
@@ -150,7 +150,6 @@ static int init_heap(struct mem_block **heap, int start, int size)
blocks->file_priv = NULL;
blocks->next = blocks->prev = *heap;
- memset(*heap, 0, sizeof(**heap));
(*heap)->file_priv = (struct drm_file *) - 1;
(*heap)->next = (*heap)->prev = blocks;
return 0;
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_overlay.c b/drivers/gpu/drm/vmwgfx/vmwgfx_overlay.c
index f1a52f9e7298..07ce02da78a4 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_overlay.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_overlay.c
@@ -585,11 +585,10 @@ int vmw_overlay_init(struct vmw_private *dev_priv)
return -ENOSYS;
}
- overlay = kmalloc(sizeof(*overlay), GFP_KERNEL);
+ overlay = kzalloc(sizeof(*overlay), GFP_KERNEL);
if (!overlay)
return -ENOMEM;
- memset(overlay, 0, sizeof(*overlay));
mutex_init(&overlay->mutex);
for (i = 0; i < VMW_MAX_NUM_STREAMS; i++) {
overlay->stream[i].buf = NULL;
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c
index 5408b1b7996f..bfe1bcce7f8a 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c
@@ -612,11 +612,9 @@ int vmw_surface_define_ioctl(struct drm_device *dev, void *data,
srf->sizes[0].height == 64 &&
srf->format == SVGA3D_A8R8G8B8) {
- srf->snooper.image = kmalloc(64 * 64 * 4, GFP_KERNEL);
- /* clear the image */
- if (srf->snooper.image) {
- memset(srf->snooper.image, 0x00, 64 * 64 * 4);
- } else {
+ /* allocate image area and clear it */
+ srf->snooper.image = kzalloc(64 * 64 * 4, GFP_KERNEL);
+ if (!srf->snooper.image) {
DRM_ERROR("Failed to allocate cursor_image\n");
ret = -ENOMEM;
goto out_err1;
diff --git a/drivers/gpu/vga/vgaarb.c b/drivers/gpu/vga/vgaarb.c
index 8a1021f2e319..c72f1c0b5e63 100644
--- a/drivers/gpu/vga/vgaarb.c
+++ b/drivers/gpu/vga/vgaarb.c
@@ -1171,10 +1171,9 @@ static int vga_arb_open(struct inode *inode, struct file *file)
pr_debug("%s\n", __func__);
- priv = kmalloc(sizeof(struct vga_arb_private), GFP_KERNEL);
+ priv = kzalloc(sizeof(*priv), GFP_KERNEL);
if (priv == NULL)
return -ENOMEM;
- memset(priv, 0, sizeof(*priv));
spin_lock_init(&priv->lock);
file->private_data = priv;