It's possible that cifs_mount will call cifs_build_path_to_root on a
newly instantiated cifs_sb. In that case, it's likely that the
master_tlink pointer has not yet been instantiated.
Fix this by having cifs_build_path_to_root take a cifsTconInfo pointer
as well, and have the caller pass that in.
Reported-and-Tested-by: Robbert Kouprie <robbert@exx.nl>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
__func__, curr_xid, (int)rc); \
} while (0)
extern char *build_path_from_dentry(struct dentry *);
__func__, curr_xid, (int)rc); \
} while (0)
extern char *build_path_from_dentry(struct dentry *);
-extern char *cifs_build_path_to_root(struct cifs_sb_info *cifs_sb);
+extern char *cifs_build_path_to_root(struct cifs_sb_info *cifs_sb,
+ struct cifsTconInfo *tcon);
extern char *build_wildcard_path_from_dentry(struct dentry *direntry);
extern char *cifs_compose_mount_options(const char *sb_mountdata,
const char *fullpath, const struct dfs_info3_param *ref,
extern char *build_wildcard_path_from_dentry(struct dentry *direntry);
extern char *cifs_compose_mount_options(const char *sb_mountdata,
const char *fullpath, const struct dfs_info3_param *ref,
/* check if a whole path (including prepath) is not remote */
if (!rc && cifs_sb->prepathlen && tcon) {
/* build_path_to_root works only when we have a valid tcon */
/* check if a whole path (including prepath) is not remote */
if (!rc && cifs_sb->prepathlen && tcon) {
/* build_path_to_root works only when we have a valid tcon */
- full_path = cifs_build_path_to_root(cifs_sb);
+ full_path = cifs_build_path_to_root(cifs_sb, tcon);
if (full_path == NULL) {
rc = -ENOMEM;
goto mount_fail_check;
if (full_path == NULL) {
rc = -ENOMEM;
goto mount_fail_check;
.lookup = cifs_lookup,
};
.lookup = cifs_lookup,
};
-char *cifs_build_path_to_root(struct cifs_sb_info *cifs_sb)
+char *cifs_build_path_to_root(struct cifs_sb_info *cifs_sb,
+ struct cifsTconInfo *tcon)
{
int pplen = cifs_sb->prepathlen;
int dfsplen;
char *full_path = NULL;
{
int pplen = cifs_sb->prepathlen;
int dfsplen;
char *full_path = NULL;
- struct cifsTconInfo *tcon = cifs_sb_master_tcon(cifs_sb);
/* if no prefix path, simply set path to the root of share to "" */
if (pplen == 0) {
/* if no prefix path, simply set path to the root of share to "" */
if (pplen == 0) {
char *full_path;
struct cifsTconInfo *tcon = cifs_sb_master_tcon(cifs_sb);
char *full_path;
struct cifsTconInfo *tcon = cifs_sb_master_tcon(cifs_sb);
- full_path = cifs_build_path_to_root(cifs_sb);
+ full_path = cifs_build_path_to_root(cifs_sb, tcon);
if (full_path == NULL)
return ERR_PTR(-ENOMEM);
if (full_path == NULL)
return ERR_PTR(-ENOMEM);