drm/udl: use drm_gem_object_put_unlocked.

airlied · airlied · commit 8f3b487685b2 · 2019-03-18T10:10:46.000+10:00
When Daniel removed struct_mutex he didn't fix this call to the unlocked variant which is required since we no longer use struct mutex. This fixes a bunch of: WARNING: CPU: 4 PID: 1370 at drivers/gpu/drm/drm_gem.c:931 drm_gem_object_put+0x2b/0x30 [drm] Modules linked in: udl xt_CHECKSUM ipt_MASQUERADE tun bridge stp llc nf_conntrack_netbios_ns nf_conntrack_broadcast xt_CT ip6t> CPU: 4 PID: 1370 Comm: Xorg Not tainted 5.0.0+ #2 backtraces when you plug in a udl device. Fixes: ae358da (drm/udl: Get rid of dev->struct_mutex usage) Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Sean Paul <seanpaul@chromium.org> Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/drivers/gpu/drm/udl/udl_gem.c b/drivers/gpu/drm/udl/udl_gem.c
@@ -224,7 +224,7 @@ int udl_gem_mmap(struct drm_file *file, struct drm_device *dev,
 	*offset = drm_vma_node_offset_addr(&gobj->base.vma_node);
 
 out:
-	drm_gem_object_put(&gobj->base);
+	drm_gem_object_put_unlocked(&gobj->base);
 unlock:
 	mutex_unlock(&udl->gem_lock);
 	return ret;
