util: avoid divide by zero FPE

[elogind.git] / src / shared / util.c

diff --git a/src/shared/util.c b/src/shared/util.c
index e2f8b1fb7812b46fbae18109fdd3f0f38aa0031b..9a45e6058e200813fed1bae7ff9d27f0ebb164a5 100644 (file)
--- a/src/shared/util.c
+++ b/src/shared/util.c
@@ -148,7 +148,8 @@ usec_t timespec_load(const struct timespec *ts) {
             ts->tv_nsec == (long) -1)
                 return (usec_t) -1;
 
-        if (USEC_PER_SEC > ((UINT64_MAX - (ts->tv_nsec / NSEC_PER_USEC)) / (usec_t) ts->tv_sec))
+        if (ts->tv_sec > 0 &&
+            USEC_PER_SEC > ((UINT64_MAX - (ts->tv_nsec / NSEC_PER_USEC)) / (usec_t) ts->tv_sec))
                 return (usec_t) -1;
 
         return