flock: possible pointer dereferences [coverity scan]

Signed-off-by: Karel Zak <kzak@redhat.com>

diff --git a/sys-utils/flock.c b/sys-utils/flock.c
index 07f3484f6b0342cbf8f983d7d3021a6ec891d4ee..3322e142d820fb15f8c48c5a1c694af0b9abc60e 100644 (file)
--- a/sys-utils/flock.c
+++ b/sys-utils/flock.c
@@ -255,6 +255,7 @@ int main(int argc, char *argv[])
                         */
                        if (!(open_flags & O_RDWR) &&
                            type != LOCK_SH &&
+                           filename &&
                            access(filename, R_OK | W_OK) == 0) {
 
                                close(fd);