1 files changed, 4 insertions, 4 deletions

diff --git a/drivers/rtc/rtc-lib.c b/drivers/rtc/rtc-lib.c
index 9812120f3a7c..ba795a4db1e9 100644
--- a/drivers/rtc/rtc-lib.c
+++ b/drivers/rtc/rtc-lib.c
@@ -94,12 +94,12 @@ EXPORT_SYMBOL(rtc_time_to_tm);
 int rtc_valid_tm(struct rtc_time *tm)
 {
         if (tm->tm_year < 70
-                || tm->tm_mon >= 12
+                || ((unsigned)tm->tm_mon) >= 12
                 || tm->tm_mday < 1
                 || tm->tm_mday > rtc_month_days(tm->tm_mon, tm->tm_year + 1900)
-                || tm->tm_hour >= 24
-                || tm->tm_min >= 60
-                || tm->tm_sec >= 60)
+                || ((unsigned)tm->tm_hour) >= 24
+                || ((unsigned)tm->tm_min) >= 60
+                || ((unsigned)tm->tm_sec) >= 60)
                 return -EINVAL;
 
         return 0;