NFS: silence a harmless uninitialized variable warning

kstrtoul() can return -ERANGE so Smatch complains that "num" can be
uninitialized.  We check that it's within bounds so it's not a huge
deal.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>

diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index bdf39fa..ac4b2f0 100644 (file)
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -2899,7 +2899,7 @@ static int param_set_portnr(const char *val, const struct kernel_param *kp)
        if (!val)
                return -EINVAL;
        ret = kstrtoul(val, 0, &num);
-       if (ret == -EINVAL || num > NFS_CALLBACK_MAXPORTNR)
+       if (ret || num > NFS_CALLBACK_MAXPORTNR)
                return -EINVAL;
        *((unsigned int *)kp->arg) = num;
        return 0;