In case alloc_workqueue fails, the fix frees memory and returns to avoid potential NULL pointer dereference. Signed-off-by: Kangjie Lu <kjlu@xxxxxxx> --- drivers/gpu/drm/radeon/radeon_display.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c index aa898c699101..a31305755a77 100644 --- a/drivers/gpu/drm/radeon/radeon_display.c +++ b/drivers/gpu/drm/radeon/radeon_display.c @@ -678,6 +678,11 @@ static void radeon_crtc_init(struct drm_device *dev, int index) drm_mode_crtc_set_gamma_size(&radeon_crtc->base, 256); radeon_crtc->crtc_id = index; radeon_crtc->flip_queue = alloc_workqueue("radeon-crtc", WQ_HIGHPRI, 0); + if (!radeon_crtc->flip_queue) { + DRM_ERROR("failed to allocate the flip queue\n"); + kfree(radeon_crtc); + return; + } rdev->mode_info.crtcs[index] = radeon_crtc; if (rdev->family >= CHIP_BONAIRE) { -- 2.17.1 _______________________________________________ amd-gfx mailing list amd-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/amd-gfx