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);
 	}