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authorJerome Glisse <jglisse@redhat.com>2009-11-18 01:08:55 +0300
committerDave Airlie <airlied@redhat.com>2009-12-02 04:37:08 +0300
commit2de3b4841f67a15c7b8e820b84dd6b7cc41370da (patch)
treea1341ed009c1d1f82952731efad67d078a4a4d92 /drivers/gpu/drm/radeon/radeon_legacy_crtc.c
parentfd874ad0a0dcf715333a3f3564c6486a3a90bb22 (diff)
downloadlinux-2de3b4841f67a15c7b8e820b84dd6b7cc41370da.tar.xz
drm/radeon/kms: fix oops when set_base is call with no FB
Just do nothing if crct_set_base() is called with no FB. The oops happens when the user switches between X & vt or in some case when changing mode. Signed-off-by: Jerome Glisse <jglisse@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_legacy_crtc.c')
-rw-r--r--drivers/gpu/drm/radeon/radeon_legacy_crtc.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_legacy_crtc.c b/drivers/gpu/drm/radeon/radeon_legacy_crtc.c
index 8d0b7aa87fa4..5794364ff857 100644
--- a/drivers/gpu/drm/radeon/radeon_legacy_crtc.c
+++ b/drivers/gpu/drm/radeon/radeon_legacy_crtc.c
@@ -408,6 +408,11 @@ int radeon_crtc_set_base(struct drm_crtc *crtc, int x, int y,
uint32_t gen_cntl_reg, gen_cntl_val;
DRM_DEBUG("\n");
+ /* no fb bound */
+ if (!crtc->fb) {
+ DRM_DEBUG("No FB bound\n");
+ return 0;
+ }
radeon_fb = to_radeon_framebuffer(crtc->fb);