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vmwgfx: Use kcalloc instead of kzalloc to allocate array

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The advantage of kcalloc is, that will prevent integer overflows which could
result from the multiplication of number of elements and size and it is also
a bit nicer to read.

The semantic patch that makes this change is available
in https://lkml.org/lkml/2011/11/25/107

Signed-off-by: Thomas Meyer <thomas@m3y3r.de>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Thomas Meyer 2011-11-29 22:08:00 +01:00 committed by Dave Airlie
parent eb1711bb94
commit 24bb5a0ce3
1 changed files with 2 additions and 2 deletions
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4
drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c
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@ -140,7 +140,7 @@ int vmw_present_ioctl(struct drm_device *dev, void *data,
goto out_clips;
}
clips = kzalloc(num_clips * sizeof(*clips), GFP_KERNEL);
clips = kcalloc(num_clips, sizeof(*clips), GFP_KERNEL);
if (clips == NULL) {
DRM_ERROR("Failed to allocate clip rect list.\n");
ret = -ENOMEM;
@ -232,7 +232,7 @@ int vmw_present_readback_ioctl(struct drm_device *dev, void *data,
goto out_clips;
}
clips = kzalloc(num_clips * sizeof(*clips), GFP_KERNEL);
clips = kcalloc(num_clips, sizeof(*clips), GFP_KERNEL);
if (clips == NULL) {
DRM_ERROR("Failed to allocate clip rect list.\n");
ret = -ENOMEM;