linux-kernel - [PATCH 17/30] drm/vkms: Add missing annotation for vkms_crtc_atomic

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Date:   Fri, 14 Feb 2020 20:47:28 +0000
From:   Jules Irenge <jbi.octave@...il.com>
To:     linux-kernel@...r.kernel.org
Cc:     boqun.feng@...il.com, Jules Irenge <jbi.octave@...il.com>,
        Rodrigo Siqueira <rodrigosiqueiramelo@...il.com>,
        Haneen Mohammed <hamohammed.sa@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        David Airlie <airlied@...ux.ie>,
        dri-devel@...ts.freedesktop.org (open list:DRM DRIVER FOR VIRTUAL
        KERNEL MODESETTING (VKMS))
Subject: [PATCH 17/30] drm/vkms: Add missing annotation for vkms_crtc_atomic_flush()

Sparse reports a warning at vkms_crtc_atomic_flush()

warning: context imbalance in vkms_crtc_atomic_flush()
	 - unexpected unlock

The root cause is the missing annotation at vkms_crtc_atomic_flush()
Add the missing __releases(&vkms_output->lock) annotation

Signed-off-by: Jules Irenge <jbi.octave@...il.com>
---
 drivers/gpu/drm/vkms/vkms_crtc.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/vkms/vkms_crtc.c b/drivers/gpu/drm/vkms/vkms_crtc.c
index 7513be6444ae..bc0ac2641220 100644
--- a/drivers/gpu/drm/vkms/vkms_crtc.c
+++ b/drivers/gpu/drm/vkms/vkms_crtc.c
@@ -231,6 +231,7 @@ static void vkms_crtc_atomic_begin(struct drm_crtc *crtc,
 
 static void vkms_crtc_atomic_flush(struct drm_crtc *crtc,
 				   struct drm_crtc_state *old_crtc_state)
+	__releases(&vkms_output->lock)
 {
 	struct vkms_output *vkms_output = drm_crtc_to_vkms_output(crtc);
 
-- 
2.24.1