From: Ladislav Michl <ladis@xxxxxxxxxxxxxx>
Invalid prescaler value is silently ignored. Fix that
by returning -EINVAL in such case. As invalid value
disabled use of the prescaler, use -1 explicitely for
that purpose.
Signed-off-by: Ladislav Michl <ladis@xxxxxxxxxxxxxx>
---
drivers/clocksource/timer-dm.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/clocksource/timer-dm.c b/drivers/clocksource/timer-dm.c
index 60db173..01a9cb0 100644
--- a/drivers/clocksource/timer-dm.c
+++ b/drivers/clocksource/timer-dm.c
@@ -672,6 +672,9 @@ int omap_dm_timer_set_prescaler(struct omap_dm_timer *timer, int prescaler)
if (prescaler >= 0x00 && prescaler <= 0x07) {
l |= OMAP_TIMER_CTRL_PRE;
l |= prescaler << 2;
+ } else {
+ if (prescaler != -1)
+ return -EINVAL;
}
omap_dm_timer_write_reg(timer, OMAP_TIMER_CTRL_REG, l);
--
1.9.1
--
To unsubscribe from this list: send the line "unsubscribe linux-omap" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
