Prevent a possible negative value of an argument

If a given argument len has a negative value, it can incur infinite loop.

This patch fixes a coverity issue (cid: 1757405).

Change-Id: Iaafad7cd1afe899de5ec2441ef58398927a472e2
Signed-off-by: Sung-hun Kim <sfoon.kim@samsung.com>

diff --git a/src/shared/util.c b/src/shared/util.c
index da130e6..eac3506 100644 (file)
--- a/src/shared/util.c
+++ b/src/shared/util.c
@@ -40,6 +40,8 @@ int write_fd(int fd, const void *buf, int len)
        int count;
        int total;
        total = 0;
+       if (len < 0)
+               return 0;
        while (len) {
                count = write(fd, buf, len);
                if (count < 0) {