[PATCH] drm/radeon: fix rare segfault after gpu lockup on r7xx

From: Jerome Glisse If GPU reset fails the gart table ptr might be NULL avoid a kernel segfault in this rare event. Signed-off-by: Jerome Glisse --- drivers/gpu/drm/radeon/r600.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/

[PATCH] drm/radeon: fix rare segfault after gpu lockup on r7xx

From: Jerome Glisse If GPU reset fails the gart table ptr might be NULL avoid a kernel segfault in this rare event. Signed-off-by: Jerome Glisse --- drivers/gpu/drm/radeon/r600.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/