cifs: fix potential mismatch of UNC paths
[ Upstream commit 1542552338
]
Ensure that full_path is an UNC path that contains '\\' as delimiter,
which is required by cifs_build_devname().
The build_path_from_dentry_optional_prefix() function may return a
path with '/' as delimiter when using SMB1 UNIX extensions, for
example.
Signed-off-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Signed-off-by: Steve French <stfrench@microsoft.com>
Acked-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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@ -324,6 +324,8 @@ static struct vfsmount *cifs_dfs_do_automount(struct dentry *mntpt)
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if (full_path == NULL)
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if (full_path == NULL)
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goto cdda_exit;
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goto cdda_exit;
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convert_delimiter(full_path, '\\');
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cifs_dbg(FYI, "%s: full_path: %s\n", __func__, full_path);
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cifs_dbg(FYI, "%s: full_path: %s\n", __func__, full_path);
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if (!cifs_sb_master_tlink(cifs_sb)) {
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if (!cifs_sb_master_tlink(cifs_sb)) {
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