Commit 9974b6ea authored by Robert P. J. Day's avatar Robert P. J. Day Committed by Linus Torvalds

rtc-s3c: Use is_power_of_2() macro for simplicity.

Use is_power_of_2() macro for simplicity.
Signed-off-by: default avatarRobert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: default avatarAlessandro Zummo <a.zummo@towertech.it>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 037e291c
...@@ -20,6 +20,7 @@ ...@@ -20,6 +20,7 @@
#include <linux/rtc.h> #include <linux/rtc.h>
#include <linux/bcd.h> #include <linux/bcd.h>
#include <linux/clk.h> #include <linux/clk.h>
#include <linux/log2.h>
#include <asm/hardware.h> #include <asm/hardware.h>
#include <asm/uaccess.h> #include <asm/uaccess.h>
...@@ -309,9 +310,7 @@ static int s3c_rtc_ioctl(struct device *dev, ...@@ -309,9 +310,7 @@ static int s3c_rtc_ioctl(struct device *dev,
break; break;
case RTC_IRQP_SET: case RTC_IRQP_SET:
/* check for power of 2 */ if (!is_power_of_2(arg)) {
if ((arg & (arg-1)) != 0 || arg < 1) {
ret = -EINVAL; ret = -EINVAL;
goto exit; goto exit;
} }
......
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