Messages in this thread Patch in this message | | | From | Rasmus Villemoes <> | Subject | [PATCH] rtc: mc13xxx: fix obfuscated and wrong format string | Date | Fri, 20 Feb 2015 14:47:30 +0100 |
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According to C99, %2.s means 'print two spaces' (a precision of . without following digits or * means 0). The kernel's printf implementation, however, treats that case as if no precision was given, but relying on that quirk is rather silly. Also, since no - (aka left-justify) flag is given, the field with of 2 would then cause the alarm->enabled case to come out as "o n". Deobfuscate it.
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> --- drivers/rtc/rtc-mc13xxx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/rtc/rtc-mc13xxx.c b/drivers/rtc/rtc-mc13xxx.c index 5bce904b7ee6..c8e78a560de7 100644 --- a/drivers/rtc/rtc-mc13xxx.c +++ b/drivers/rtc/rtc-mc13xxx.c @@ -219,7 +219,7 @@ static int mc13xxx_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alarm) if (unlikely(ret)) goto out; - dev_dbg(dev, "%s: o%2.s %lu\n", __func__, alarm->enabled ? "n" : "ff", + dev_dbg(dev, "%s: %s %lu\n", __func__, alarm->enabled ? "on" : "off", s1970); ret = mc13xxx_rtc_irq_enable_unlocked(dev, alarm->enabled, -- 2.1.3
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