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Commit 9d013d3b authored by Bryan Kadzban's avatar Bryan Kadzban Committed by Linus Torvalds
Browse files

rtc: allow validated RTC_PIE_ON for non-root 



drivers/char/rtc.c allowed RTC_PIE_ON ioctls for non-root users, as long as
the current interval (set via RTC_IRQP_SET) is <= max_user_freq.  Allow
RTC_PIE_ON under the same conditions when /dev/rtc* is handled by the rtc
subsystem.

Signed-off-by: default avatarBryan Kadzban <bryan@kdzbn.homelinux.net>
Acked-by: default avatarAlessandro Zummo <alessandro.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 06c65eb4

drivers/rtc/rtc-dev.c

+2 −1
Original line number Diff line number Diff line
@@ -233,7 +233,8 @@ static int rtc_dev_ioctl(struct inode *inode, struct file *file, 
		break;



	case RTC_PIE_ON:

		if (!capable(CAP_SYS_RESOURCE))

		if (rtc->irq_freq > rtc->max_user_freq &&

				!capable(CAP_SYS_RESOURCE))

			return -EACCES;

		break;

	}