Commit 8cca2ec2 authored by Helen Koike's avatar Helen Koike Committed by Greg Kroah-Hartman

drm/msm: fix fb references in async update

commit 474d952b upstream.

Async update callbacks are expected to set the old_fb in the new_state
so prepare/cleanup framebuffers are balanced.

Cc: <stable@vger.kernel.org> # v4.14+
Fixes: 224a4c97 ("drm/msm: update cursors asynchronously through atomic")
Suggested-by: default avatarBoris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: default avatarHelen Koike <helen.koike@collabora.com>
Acked-by: default avatarRob Clark <robdclark@gmail.com>
Signed-off-by: default avatarBoris Brezillon <boris.brezillon@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190603165610.24614-4-helen.koike@collabora.comSigned-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 59b3172c
......@@ -502,6 +502,8 @@ static int mdp5_plane_atomic_async_check(struct drm_plane *plane,
static void mdp5_plane_atomic_async_update(struct drm_plane *plane,
struct drm_plane_state *new_state)
{
struct drm_framebuffer *old_fb = plane->state->fb;
plane->state->src_x = new_state->src_x;
plane->state->src_y = new_state->src_y;
plane->state->crtc_x = new_state->crtc_x;
......@@ -524,6 +526,8 @@ static void mdp5_plane_atomic_async_update(struct drm_plane *plane,
*to_mdp5_plane_state(plane->state) =
*to_mdp5_plane_state(new_state);
new_state->fb = old_fb;
}
static const struct drm_plane_helper_funcs mdp5_plane_helper_funcs = {
......
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