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Commit fbbde97c authored by Yue Ma's avatar Yue Ma
Browse files

cnss2: Avoid blocking target to reboot or shutdown 



Use wait_for_completion_killable() instead of wait_for_completion() to
avold blocking target to reboot or shutdown during WLAN device power
on/off.

Change-Id: If60848fe9d61e506347e3c6b0fe8c8604cee6c79
Signed-off-by: default avatarYue Ma <yuem@codeaurora.org>
parent f20188bc

drivers/net/wireless/cnss2/main.c

+5 −1
Original line number Diff line number Diff line
@@ -558,8 +558,10 @@ int cnss_driver_event_post(struct cnss_plat_data *plat_priv, 
	if (!(flags & CNSS_EVENT_SYNC))

		goto out;



	if (flags & CNSS_EVENT_UNINTERRUPTIBLE)

	if (flags & CNSS_EVENT_UNKILLABLE)

		wait_for_completion(&event->complete);

	else if (flags & CNSS_EVENT_UNINTERRUPTIBLE)

		ret = wait_for_completion_killable(&event->complete);

	else

		ret = wait_for_completion_interruptible(&event->complete);
@@ -2113,6 +2115,8 @@ static int cnss_reboot_notifier(struct notifier_block *nb, 
		container_of(nb, struct cnss_plat_data, reboot_nb);



	set_bit(CNSS_IN_REBOOT, &plat_priv->driver_state);

	del_timer(&plat_priv->fw_boot_timer);

	complete_all(&plat_priv->power_up_complete);

	cnss_pr_dbg("Reboot is in progress with action %d\n", action);



	return NOTIFY_DONE;

drivers/net/wireless/cnss2/main.h

+2 −0
Original line number Diff line number Diff line
@@ -25,8 +25,10 @@ 


#define CNSS_EVENT_SYNC   BIT(0)

#define CNSS_EVENT_UNINTERRUPTIBLE BIT(1)

#define CNSS_EVENT_UNKILLABLE BIT(2)

#define CNSS_EVENT_SYNC_UNINTERRUPTIBLE (CNSS_EVENT_SYNC | \

				CNSS_EVENT_UNINTERRUPTIBLE)

#define CNSS_EVENT_SYNC_UNKILLABLE (CNSS_EVENT_SYNC | CNSS_EVENT_UNKILLABLE)



enum cnss_dev_bus_type {

	CNSS_BUS_NONE = -1,