3 files changed, 5 insertions, 32 deletions

diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h
index a249a29109a5..d481f6c5a2be 100644
--- a/fs/cifs/cifsproto.h
+++ b/fs/cifs/cifsproto.h
@@ -70,7 +70,7 @@ extern unsigned int smbCalcSize(struct smb_hdr *ptr);
 extern unsigned int smbCalcSize_LE(struct smb_hdr *ptr);
 extern int decode_negTokenInit(unsigned char *security_blob, int length,
                         enum securityEnum *secType);
-extern int cifs_inet_pton(int, char *source, void *dst);
+extern int cifs_inet_pton(const int, const char *source, void *dst);
 extern int map_smb_to_linux_error(struct smb_hdr *smb, int logErr);
 extern void header_assemble(struct smb_hdr *, char /* command */ ,
                             const struct cifsTconInfo *, int /* length of
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 957998e8477e..791ca5c1a116 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -1302,6 +1302,9 @@ cifs_parse_mount_options(char *options, const char *devname,
                                                     "begin with // or \\\\ \n");
                                 return 1;
                         }
+                        value = strpbrk(vol->UNC+2, "/\\");
+                        if (value)
+                                *value = '\\';
                 } else {
                         printk(KERN_WARNING "CIFS: UNC name too long\n");
                         return 1;
diff --git a/fs/cifs/netmisc.c b/fs/cifs/netmisc.c
index 3b5a5ce882b6..00f4cff400b3 100644
--- a/fs/cifs/netmisc.c
+++ b/fs/cifs/netmisc.c
@@ -132,47 +132,17 @@ static const struct smb_to_posix_error mapping_table_ERRHRD[] = {
         {0, 0}
 };
 
-
-/* if the mount helper is missing we need to reverse the 1st slash
-   from '/' to backslash in order to format the UNC properly for
-   ip address parsing and for tree connect (unless the user
-   remembered to put the UNC name in properly). Fortunately we do
-   not have to call this twice (we check for IPv4 addresses
-   first, so it is already converted by the time we
-   try IPv6 addresses */
-static int canonicalize_unc(char *cp)
-{
-        int i;
-
-        for (i = 0; i <= 46 /* INET6_ADDRSTRLEN */ ; i++) {
-                if (cp[i] == 0)
-                        break;
-                if (cp[i] == '\\')
-                        break;
-                if (cp[i] == '/') {
-                        cFYI(DBG2, ("change slash to \\ in malformed UNC"));
-                        cp[i] = '\\';
-                        return 1;
-                }
-        }
-        return 0;
-}
-
 /* Convert string containing dotted ip address to binary form */
 /* returns 0 if invalid address */
 
 int
-cifs_inet_pton(int address_family, char *cp, void *dst)
+cifs_inet_pton(const int address_family, const char *cp, void *dst)
 {
         int ret = 0;
 
         /* calculate length by finding first slash or NULL */
         if (address_family == AF_INET) {
                 ret = in4_pton(cp, -1 /* len */, dst, '\\', NULL);
-                if (ret == 0) {
-                        if (canonicalize_unc(cp))
-                                ret = in4_pton(cp, -1, dst, '\\', NULL);
-                }
         } else if (address_family == AF_INET6) {
                 ret = in6_pton(cp, -1 /* len */, dst , '\\', NULL);
         }