1 files changed, 7 insertions, 2 deletions

diff --git a/fs/nfs/nfs4filelayoutdev.c b/fs/nfs/nfs4filelayoutdev.c
index 51fe64ace55a..f5c9b125e8cc 100644
--- a/fs/nfs/nfs4filelayoutdev.c
+++ b/fs/nfs/nfs4filelayoutdev.c
@@ -214,7 +214,7 @@ decode_and_add_ds(__be32 **pp, struct inode *inode)
 
         /* ipv6 length plus port is legal */
         if (rlen > INET6_ADDRSTRLEN + 8) {
-                dprintk("%s Invalid address, length %d\n", __func__,
+                dprintk("%s: Invalid address, length %d\n", __func__,
                         rlen);
                 goto out_err;
         }
@@ -225,6 +225,11 @@ decode_and_add_ds(__be32 **pp, struct inode *inode)
         /* replace the port dots with dashes for the in4_pton() delimiter*/
         for (i = 0; i < 2; i++) {
                 char *res = strrchr(buf, '.');
+                if (!res) {
+                        dprintk("%s: Failed finding expected dots in port\n",
+                                __func__);
+                        goto out_free;
+                }
                 *res = '-';
         }
 
@@ -240,7 +245,7 @@ decode_and_add_ds(__be32 **pp, struct inode *inode)
         port = htons((tmp[0] << 8) | (tmp[1]));
 
         ds = nfs4_pnfs_ds_add(inode, ip_addr, port);
-        dprintk("%s Decoded address and port %s\n", __func__, buf);
+        dprintk("%s: Decoded address and port %s\n", __func__, buf);
 out_free:
         kfree(buf);
 out_err: