asoc: wcd-dsp-mgr: clear work queue for wcd dsp manager · 9836489e23 - n4ne's Gogs

asoc: wcd-dsp-mgr: clear work queue for wcd dsp manager

wdsp_mgr_bind would schedule work to load wdsp firmware.
Before loading wdsp firmware, sound card registeration may fail.
wcd_dsp_cntl_deinit would get called to free cntl which would be used
in wdsp_load_fw_image which would cause kernel panic.
Clear work queue in wdsp_mgr_unbind to avoid kernel panic.

Change-Id: I6c052fa8ea1ff62a8b075ba191085612242a5005
Signed-off-by: Meng Wang <[email protected]>

Meng Wang 7 years ago

parent

5ee446ca78

commit

9836489e23

1 changed files with 2 additions and 0 deletions

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asoc/codecs/wcd-dsp-mgr.c
							 
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				@@ -1091,6 +1091,8 @@ static void wdsp_mgr_unbind(struct device *dev)
			
				 	struct wdsp_cmpnt *cmpnt;
			
				 	int idx;
			
				+	cancel_work_sync(&wdsp->load_fw_work);
			
				+
			
				 	component_unbind_all(dev, wdsp->ops);
			
				 	wdsp_mgr_debugfs_remove(wdsp);