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drm: self_refresh: Fix a reversed condition in drm_self_refresh_helper_cleanup() 

This test is flipped around so it either leads to a memory leak or a
NULL dereference.

Fixes: 1452c25b0e ("drm: Add helpers to kick off self refresh mode in drivers")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190619100141.GA28596@mwanda
This commit is contained in:
Dan Carpenter 2019-06-19 13:01:41 +03:00 committed by Sean Paul
parent 90b86fcc47
commit 7d0ed30433
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/drm_self_refresh_helper.c
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@ -205,7 +205,7 @@ void drm_self_refresh_helper_cleanup(struct drm_crtc *crtc)
struct drm_self_refresh_data *sr_data = crtc->self_refresh_data; struct drm_self_refresh_data *sr_data = crtc->self_refresh_data;
/* Helper is already uninitialized */ /* Helper is already uninitialized */
if (sr_data) if (!sr_data)
return; return;
crtc->self_refresh_data = NULL; crtc->self_refresh_data = NULL;