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[PATCH] rtc subsystem: add capability checks

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Centralize CAP_SYS_XXX checks to avoid duplicate code and missing checks in
the drivers.

Signed-off-by: Alessandro Zummo <a.zummo@towertech.it>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Alessandro Zummo
2006-06-25 05:48:20 -07:00
committed by Linus Torvalds
parent 56f10c634e
commit 110d693d58
5 changed files with 24 additions and 19 deletions
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8
drivers/rtc/rtc-vr41xx.c
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@@ -81,7 +81,6 @@ MODULE_LICENSE("GPL");
#define RTC_FREQUENCY 32768
#define MAX_PERIODIC_RATE 6553
#define MAX_USER_PERIODIC_RATE 64
static void __iomem *rtc1_base;
static void __iomem *rtc2_base;
@@ -240,9 +239,6 @@ static int vr41xx_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long
if (arg > MAX_PERIODIC_RATE)
return -EINVAL;
if (arg > MAX_USER_PERIODIC_RATE && capable(CAP_SYS_RESOURCE) == 0)
return -EACCES;
periodic_frequency = arg;
count = RTC_FREQUENCY;
@@ -263,10 +259,6 @@ static int vr41xx_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long
/* Doesn't support before 1900 */
if (arg < 1900)
return -EINVAL;
if (capable(CAP_SYS_TIME) == 0)
return -EACCES;
epoch = arg;
break;
default: