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authorJeff Layton <jlayton@redhat.com>2009-02-11 08:08:26 -0500
committerSteve French <sfrench@us.ibm.com>2009-02-21 03:37:08 +0000
commit950ec52880fab89b957c7dc45e8b8476dd63741f (patch)
treedfb8bd4bdf0e455fefd453c4e899276641a60394
parent132ac7b77cc95a22d6118d327c96586759fbf006 (diff)
downloadlinux-2.6.38-lt-ux500-950ec52880fab89b957c7dc45e8b8476dd63741f.tar.gz
cifs: properly handle case where CIFSGetSrvInodeNumber fails
...if it does then we pass a pointer to an unintialized variable for the inode number to cifs_new_inode. Have it pass a NULL pointer instead. Also tweak the function prototypes to reduce the amount of casting. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
-rw-r--r--fs/cifs/cifsproto.h3
-rw-r--r--fs/cifs/inode.c20
-rw-r--r--fs/cifs/readdir.c6
3 files changed, 14 insertions, 15 deletions
diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h
index 62fd5bd499f..446e62cbece 100644
--- a/fs/cifs/cifsproto.h
+++ b/fs/cifs/cifsproto.h
@@ -92,8 +92,7 @@ extern u64 cifs_UnixTimeToNT(struct timespec);
extern __le64 cnvrtDosCifsTm(__u16 date, __u16 time);
extern struct timespec cnvrtDosUnixTm(__u16 date, __u16 time);
-extern struct inode *cifs_new_inode(struct super_block *sb,
- unsigned long *inum);
+extern struct inode *cifs_new_inode(struct super_block *sb, __u64 *inum);
extern int cifs_get_inode_info(struct inode **pinode,
const unsigned char *search_path,
FILE_ALL_INFO *pfile_info,
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index c7674f595ad..475115c7cc7 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -213,7 +213,7 @@ static void fill_fake_finddataunix(FILE_UNIX_BASIC_INFO *pfnd_dat,
* guaranteed to be unique.
*/
struct inode *
-cifs_new_inode(struct super_block *sb, unsigned long *inum)
+cifs_new_inode(struct super_block *sb, __u64 *inum)
{
struct inode *inode;
@@ -228,7 +228,7 @@ cifs_new_inode(struct super_block *sb, unsigned long *inum)
* if serverino is disabled, perhaps we should be using iunique()?
*/
if (inum && (CIFS_SB(sb)->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM))
- inode->i_ino = *inum;
+ inode->i_ino = (unsigned long) *inum;
/*
* must set this here instead of cifs_alloc_inode since VFS will
@@ -276,8 +276,7 @@ int cifs_get_inode_info_unix(struct inode **pinode,
/* get new inode */
if (*pinode == NULL) {
- *pinode = cifs_new_inode(sb, (unsigned long *)
- &find_data.UniqueId);
+ *pinode = cifs_new_inode(sb, &find_data.UniqueId);
if (*pinode == NULL) {
rc = -ENOMEM;
goto cgiiu_exit;
@@ -499,6 +498,7 @@ int cifs_get_inode_info(struct inode **pinode,
/* get new inode */
if (*pinode == NULL) {
__u64 inode_num;
+ __u64 *pinum = &inode_num;
/* Is an i_ino of zero legal? Can we use that to check
if the server supports returning inode numbers? Are
@@ -518,20 +518,20 @@ int cifs_get_inode_info(struct inode **pinode,
int rc1 = 0;
rc1 = CIFSGetSrvInodeNumber(xid, pTcon,
- full_path, &inode_num,
+ full_path, pinum,
cifs_sb->local_nls,
cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_MAP_SPECIAL_CHR);
if (rc1) {
cFYI(1, ("GetSrvInodeNum rc %d", rc1));
+ pinum = NULL;
/* BB EOPNOSUPP disable SERVER_INUM? */
}
- *pinode = cifs_new_inode(sb, (unsigned long *)
- &inode_num);
} else {
- *pinode = cifs_new_inode(sb, NULL);
+ pinum = NULL;
}
+ *pinode = cifs_new_inode(sb, pinum);
if (*pinode == NULL) {
rc = -ENOMEM;
goto cgii_exit;
@@ -1148,8 +1148,8 @@ int cifs_mkdir(struct inode *inode, struct dentry *direntry, int mode)
else
direntry->d_op = &cifs_dentry_ops;
- newinode = cifs_new_inode(inode->i_sb, (unsigned long *)
- &pInfo->UniqueId);
+ newinode = cifs_new_inode(inode->i_sb,
+ &pInfo->UniqueId);
if (newinode == NULL) {
kfree(pInfo);
goto mkdir_get_info;
diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c
index 02a20221e84..c2c01ff4c32 100644
--- a/fs/cifs/readdir.c
+++ b/fs/cifs/readdir.c
@@ -61,7 +61,7 @@ static inline void dump_cifs_file_struct(struct file *file, char *label)
static int
construct_dentry(struct qstr *qstring, struct file *file,
struct inode **ptmp_inode, struct dentry **pnew_dentry,
- unsigned long *inum)
+ __u64 *inum)
{
struct dentry *tmp_dentry = NULL;
struct super_block *sb = file->f_path.dentry->d_sb;
@@ -820,7 +820,7 @@ static int find_cifs_entry(const int xid, struct cifsTconInfo *pTcon,
/* inode num, inode type and filename returned */
static int cifs_get_name_from_search_buf(struct qstr *pqst,
char *current_entry, __u16 level, unsigned int unicode,
- struct cifs_sb_info *cifs_sb, int max_len, ino_t *pinum)
+ struct cifs_sb_info *cifs_sb, int max_len, __u64 *pinum)
{
int rc = 0;
unsigned int len = 0;
@@ -903,7 +903,7 @@ static int cifs_filldir(char *pfindEntry, struct file *file,
struct qstr qstring;
struct cifsFileInfo *pCifsF;
unsigned int obj_type;
- ino_t inum;
+ __u64 inum;
struct cifs_sb_info *cifs_sb;
struct inode *tmp_inode;
struct dentry *tmp_dentry;