wl12xx: prevent sched_scan when not idle or not in station mode



The current firmware only supports scheduled scan in station mode and
when idle.  To prevent the firmware from crashing, return -EOPNOTSUPP
when sched_scan start is called in an invalid state.

Signed-off-by: Luciano Coelho <coelho@ti.com>

parent d3eff81d

drivers/net/wireless/wl12xx/scan.c

+6 −0

Original line number	Diff line number	Diff line
		@@ -505,6 +505,12 @@ int wl1271_scan_sched_scan_start(struct wl1271 *wl)

		wl1271_debug(DEBUG_CMD, "cmd periodic scan start");

		if (wl->bss_type != BSS_TYPE_STA_BSS)
		return -EOPNOTSUPP;

		if (!test_bit(WL1271_FLAG_IDLE, &wl->flags))
		return -EBUSY;

		start = kzalloc(sizeof(*start), GFP_KERNEL);
		if (!start)
		return -ENOMEM;