[PATCH] drm: sti: sti_hqvdp: undo preparation of a clock source.

[Arvind Yadav]

Undo preparation of a clock source, if sti_hqvdp_start_xp70 and
sti_hqvdp_atomic_check are not successful.

Signed-off-by: Arvind Yadav <arvind.yadav...@gmail.com>
---
 drivers/gpu/drm/sti/sti_hqvdp.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/sti/sti_hqvdp.c b/drivers/gpu/drm/sti/sti_hqvdp.c
index 075802d..8dbb34d 100644
--- a/drivers/gpu/drm/sti/sti_hqvdp.c
+++ b/drivers/gpu/drm/sti/sti_hqvdp.c
@@ -959,6 +959,7 @@ static void sti_hqvdp_start_xp70(struct sti_hqvdp *hqvdp)
        }
        if (i == POLL_MAX_ATTEMPT) {
                DRM_ERROR("Could not reset\n");
+               clk_disable_unprepare(hqvdp->clk);
                goto out;
        }
 
@@ -995,6 +996,7 @@ static void sti_hqvdp_start_xp70(struct sti_hqvdp *hqvdp)
        }
        if (i == POLL_MAX_ATTEMPT) {
                DRM_ERROR("Could not boot\n");
+               clk_disable_unprepare(hqvdp->clk);
                goto out;
        }
 
@@ -1082,6 +1084,7 @@ static int sti_hqvdp_atomic_check(struct drm_plane 
*drm_plane,
                                            &hqvdp->vtg_nb,
                                            crtc)) {
                        DRM_ERROR("Cannot register VTG notifier\n");
+                       clk_disable_unprepare(hqvdp->clk_pix_main);
                        return -EINVAL;
                }
                hqvdp->vtg_registered = true;
-- 
1.9.1

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