to terminate the while-loop in drm_dp_aux_crc_work when drm_dp_start/stop_crc
are called in the hook to set crc source.
Cc:Leo Li <sunpeng.li@xxxxxxx>, Harry <Harry.Wentland@xxxxxxx>, Nick <Nicholas.Kazlauskas@xxxxxxx>
Signed-off-by: Dingchen Zhang <dingchen.zhang@xxxxxxx>
---
drivers/gpu/drm/drm_debugfs_crc.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/gpu/drm/drm_debugfs_crc.c b/drivers/gpu/drm/drm_debugfs_crc.c
index e20adef9d623..0e8bcc130383 100644
--- a/drivers/gpu/drm/drm_debugfs_crc.c
+++ b/drivers/gpu/drm/drm_debugfs_crc.c
@@ -249,6 +249,13 @@ static int crtc_crc_release(struct inode *inode, struct file *filep)
struct drm_crtc *crtc = filep->f_inode->i_private;
struct drm_crtc_crc *crc = &crtc->crc;
+ /* terminate the infinite while loop if 'drm_dp_aux_crc_work' running */
+ if (crc->opened) {
+ spin_lock_irq(&crc->lock);
+ crc->opened = false;
+ spin_unlock_irq(&crc->lock);
+ }
+
crtc->funcs->set_crc_source(crtc, NULL);
spin_lock_irq(&crc->lock);
--
2.17.1
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