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path: root/target/linux/brcm47xx/patches-3.6/552-ssb-extif-add-check-for-max-value-in-watchdog.patch
blob: c6756dd11ac3b7b47cbcde34c49fdd6844a2f807 (plain)
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--- a/drivers/ssb/driver_extif.c
+++ b/drivers/ssb/driver_extif.c
@@ -112,9 +112,10 @@ void ssb_extif_get_clockcontrol(struct s
 	*m = extif_read32(extif, SSB_EXTIF_CLOCK_SB);
 }
 
-void ssb_extif_watchdog_timer_set(struct ssb_extif *extif,
-				  u32 ticks)
+void ssb_extif_watchdog_timer_set(struct ssb_extif *extif, u32 ticks)
 {
+	if (ticks > SSB_EXTIF_WATCHDOG_MAX_TIMER)
+		ticks = SSB_EXTIF_WATCHDOG_MAX_TIMER;
 	extif_write32(extif, SSB_EXTIF_WATCHDOG, ticks);
 }
 
--- a/include/linux/ssb/ssb_driver_extif.h
+++ b/include/linux/ssb/ssb_driver_extif.h
@@ -152,6 +152,7 @@
 /* watchdog */
 #define SSB_EXTIF_WATCHDOG_CLK		48000000	/* Hz */
 
+#define SSB_EXTIF_WATCHDOG_MAX_TIMER	((1 << 28) - 1)
 
 
 #ifdef CONFIG_SSB_DRIVER_EXTIF