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drm/radeon: fix unsigned comparison with 0 

Fixes warning because pipe is unsigned long and can never be negtative

vers/gpu/drm/radeon/radeon_kms.c:831:11: warning:
comparison of unsigned expression < 0 is always false [-Wtype-limits]
  if (pipe < 0 || pipe >= rdev->num_crtc) {
drivers/gpu/drm/radeon/radeon_kms.c:857:11: warning:
comparison of unsigned expression < 0 is always false [-Wtype-limits]
  if (pipe < 0 || pipe >= rdev->num_crtc) {

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: ChenTao <chentao107@huawei.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
ChenTao 2020-05-05 12:57:37 +08:00 committed by Alex Deucher
parent 54b7feb93f
commit a2eb03a569
1 changed files with 2 additions and 2 deletions
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4
drivers/gpu/drm/radeon/radeon_kms.c
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@ -828,7 +828,7 @@ int radeon_enable_vblank_kms(struct drm_crtc *crtc)
unsigned long irqflags; unsigned long irqflags;
int r; int r;
if (pipe < 0 || pipe >= rdev->num_crtc) { if (pipe >= rdev->num_crtc) {
DRM_ERROR("Invalid crtc %d\n", pipe); DRM_ERROR("Invalid crtc %d\n", pipe);
return -EINVAL; return -EINVAL;
} }
@ -854,7 +854,7 @@ void radeon_disable_vblank_kms(struct drm_crtc *crtc)
struct radeon_device *rdev = dev->dev_private; struct radeon_device *rdev = dev->dev_private;
unsigned long irqflags; unsigned long irqflags;
if (pipe < 0 || pipe >= rdev->num_crtc) { if (pipe >= rdev->num_crtc) {
DRM_ERROR("Invalid crtc %d\n", pipe); DRM_ERROR("Invalid crtc %d\n", pipe);
return; return;
} }