1 files changed, 1 insertions, 1 deletions

diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index fd987b17bda7..6021757a4496 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -234,7 +234,7 @@ int strict_strto##type(const char *cp, unsigned int base, valtype *res)	\
         int ret;                                                        \
         if (*cp == '-') {                                               \
                 ret = strict_strtou##type(cp+1, base, res);             \
-                if (ret != 0)                                           \
+                if (!ret)                                               \
                         *res = -(*res);                                 \
         } else                                                          \
                 ret = strict_strtou##type(cp, base, res);               \