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Subject[PATCH 4.9 15/41] drm/vc4: Fix memory leak during gpu reset.
Date
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>

commit d08106796a78a4273e39e1bbdf538dc4334b2635 upstream.

__drm_atomic_helper_crtc_destroy_state does not free memory, it only
cleans it up. Fix this by calling the functions own destroy function.

Fixes: 6d6e50039187 ("drm/vc4: Allocate the right amount of space for boot-time CRTC state.")
Cc: Eric Anholt <eric@anholt.net>
Cc: <stable@vger.kernel.org> # v4.6+
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190301125627.7285-2-maarten.lankhorst@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
drivers/gpu/drm/vc4/vc4_crtc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/gpu/drm/vc4/vc4_crtc.c
+++ b/drivers/gpu/drm/vc4/vc4_crtc.c
@@ -846,7 +846,7 @@ static void
vc4_crtc_reset(struct drm_crtc *crtc)
{
if (crtc->state)
- __drm_atomic_helper_crtc_destroy_state(crtc->state);
+ vc4_crtc_destroy_state(crtc->state);

crtc->state = kzalloc(sizeof(struct vc4_crtc_state), GFP_KERNEL);
if (crtc->state)

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