[PATCH] 2.5.7 adjtimex and SINGLESHOT

8018e670 · Rusty Russell · Linus Torvalds · 97f64253 · 8018e670
Commit 8018e670 authored Apr 21, 2002 by Rusty Russell Committed by Linus Torvalds Apr 21, 2002
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kernel/time.c kernel/time.c +5 -0

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--- a/kernel/time.c
+++ b/kernel/time.c
@@ -216,6 +216,11 @@ int do_adjtimex(struct timex *txc)
 		
 	/* Now we validate the data before disabling interrupts */

+	if ((txc->modes & ADJ_OFFSET_SINGLESHOT) == ADJ_OFFSET_SINGLESHOT)
+	  /* singleshot must not be used with any other mode bits */
+		if (txc->modes != ADJ_OFFSET_SINGLESHOT)
+			return -EINVAL;
+
 	if (txc->modes != ADJ_OFFSET_SINGLESHOT && (txc->modes & ADJ_OFFSET))
 	  /* adjustment Offset limited to +- .512 seconds */
 		if (txc->offset <= - MAXPHASE || txc->offset >= MAXPHASE )