[PATCH] wpa_supplicant: don't allow too short sched scan

[David Spinadel]

From: David Spinadel <david.spinadel at intel.com>

In case that the ssid list is longer than max number of ssids,
ths scheduled scan aborted after timeout and rescheduled again
with shorter timeout and longer interval. In case that the timeout
is shorter than the interval, only one scan iteration will
be run. In this case, start again the initial times.

Signed-hostap: David Spinadel <david.spinadel at intel.com>
---
 wpa_supplicant/scan.c |    4 ++++
 1 file changed, 4 insertions(+)

diff --git a/wpa_supplicant/scan.c b/wpa_supplicant/scan.c
index 0e45079..ce33d0c 100644
--- a/wpa_supplicant/scan.c
+++ b/wpa_supplicant/scan.c
@@ -1118,6 +1118,10 @@ scan:
 		wpa_s->first_sched_scan = 0;
 		wpa_s->sched_scan_timeout /= 2;
 		wpa_s->sched_scan_interval *= 2;
+		if (wpa_s->sched_scan_timeout < wpa_s->sched_scan_interval) {
+			wpa_s->sched_scan_interval = 10;
+			wpa_s->sched_scan_timeout = max_sched_scan_ssids * 2;
+		}
 	}
 
 	/* If there is no more ssids, start next time from the beginning */
-- 
1.7.10.msysgit.1