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drm/radeon/radeon_device.c: move a dereference below a NULL test 

If a NULL value is possible, the dereference should only occur after the
NULL test.

Coverity CID: 13335

Signed-off-by: Darren Jenkins <darrenrjenkins@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Darren Jenkins 2009-12-30 12:18:30 +11:00 committed by Dave Airlie
parent 3655d54af8
commit 875c186620
1 changed files with 4 additions and 2 deletions
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6
drivers/gpu/drm/radeon/radeon_device.c
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@ -733,16 +733,18 @@ void radeon_device_fini(struct radeon_device *rdev)
*/
int radeon_suspend_kms(struct drm_device *dev, pm_message_t state)
{
struct radeon_device *rdev = dev->dev_private;
struct radeon_device *rdev;
struct drm_crtc *crtc;
int r;
if (dev == NULL || rdev == NULL) {
if (dev == NULL || dev->dev_private == NULL) {
return -ENODEV;
}
if (state.event == PM_EVENT_PRETHAW) {
return 0;
}
rdev = dev->dev_private;
/* unpin the front buffers */
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
struct radeon_framebuffer *rfb = to_radeon_framebuffer(crtc->fb);