From 2de3b4841f67a15c7b8e820b84dd6b7cc41370da Mon Sep 17 00:00:00 2001 From: Jerome Glisse Date: Tue, 17 Nov 2009 14:08:55 -0800 Subject: [PATCH] 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 Signed-off-by: Andrew Morton Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/atombios_crtc.c | 7 +++++-- drivers/gpu/drm/radeon/radeon_legacy_crtc.c | 5 +++++ 2 files changed, 10 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c index c15287a590ff..f5987afcd48d 100644 --- a/drivers/gpu/drm/radeon/atombios_crtc.c +++ b/drivers/gpu/drm/radeon/atombios_crtc.c @@ -578,8 +578,11 @@ int atombios_crtc_set_base(struct drm_crtc *crtc, int x, int y, uint64_t fb_location; uint32_t fb_format, fb_pitch_pixels, tiling_flags; - if (!crtc->fb) - return -EINVAL; + /* no fb bound */ + if (!crtc->fb) { + DRM_DEBUG("No FB bound\n"); + return 0; + } radeon_fb = to_radeon_framebuffer(crtc->fb); 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); -- 2.20.1