Commit 386cda91 authored Aug 28, 2015 by Abinaya P

msm: qpnp-haptic: cancel polling timer before starting a new timer



To handle concurrent requests, cancel the previous instance of the
polling timer just before starting a new instance of the same timer
in order to avoid concurrent access to hrtimer apis.

Change-Id: Ia424da65288666857d6f99d4b543a99434536396
Signed-off-by: Abinaya P <abinayap@codeaurora.org>

parent aab2ad6e

drivers/platform/msm/qpnp-haptic.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -1510,6 +1510,7 @@ static int qpnp_hap_set(struct qpnp_hap *hap, int on)
		* Start timer to poll Auto Resonance error bit
		*/
		mutex_lock(&hap->lock);
		hrtimer_cancel(&hap->auto_res_err_poll_timer);
		hrtimer_start(&hap->auto_res_err_poll_timer,
		ktime_set(0, timeout_ns),
		HRTIMER_MODE_REL);