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Theodore Ts'o d4fab7b28e ext4: clean up error handling in __ext4_fill_super() 
There were two ways to return an error code; one was via setting the
'err' variable, and the second, if err was zero, was via the 'ret'
variable.  This was both confusing and fragile, and when code was
factored out of __ext4_fill_super(), some of the error codes returned
by the original code was replaced by -EINVAL, and in one case, the
error code was placed by 0, triggering a kernel null pointer
dereference.

Clean this up by removing the 'ret' variable, leaving only one way to
set the error code to be returned, and restore the errno codes that
were returned via the the mount system call as they were before we
started refactoring __ext4_fill_super().

Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Jason Yan <yanaijie@huawei.com>
2023-04-28 12:56:40 -04:00
..
9p
9p patches for 6.3 merge window (part 1)
2023-03-01 08:52:49 -08:00
adfs
fs: port ->setattr() to pass mnt_idmap
2023-01-19 09:24:02 +01:00
affs
for-6.3/dio-2023-02-16
2023-02-20 14:10:36 -08:00
afs
- Daniel Verkamp has contributed a memfd series ("mm/memfd: add
2023-02-23 17:09:35 -08:00
autofs
fs: port ->permission() to pass mnt_idmap
2023-01-19 09:24:28 +01:00
befs
…
bfs
fs: port inode_init_owner() to mnt_idmap
2023-01-19 09:24:28 +01:00
btrfs
for-6.3-rc1-tag
2023-03-10 08:39:13 -08:00
cachefiles
fs: port ->permission() to pass mnt_idmap
2023-01-19 09:24:28 +01:00
ceph
Two small fixes from Xiubo and myself, marked for stable.
2023-03-02 10:48:30 -08:00
cifs
cifs: use DFS root session instead of tcon ses
2023-03-14 22:48:53 -05:00
coda
hardening updates for v6.3-rc1
2023-02-21 11:07:23 -08:00
configfs
fs: port ->permission() to pass mnt_idmap
2023-01-19 09:24:28 +01:00
cramfs
fs/cramfs/inode.c: initialize file_ra_state
2023-03-02 21:54:23 -08:00
crypto
fsverity updates for 6.3
2023-02-20 12:33:41 -08:00
debugfs
ARM: SoC drivers for 6.3
2023-02-27 10:04:49 -08:00
devpts
…
dlm
Driver core changes for 6.3-rc1
2023-02-24 12:58:55 -08:00
ecryptfs
This update includes the following changes:
2023-02-21 18:10:50 -08:00
efivarfs
A healthy mix of EFI contributions this time:
2023-02-23 14:41:48 -08:00
efs
…
erofs
erofs: use wrapper i_blocksize() in erofs_file_read_iter()
2023-03-09 23:36:04 +08:00
exfat
Description for this pull request:
2023-03-01 08:42:27 -08:00
exportfs
fs: port ->permission() to pass mnt_idmap
2023-01-19 09:24:28 +01:00
ext2
for-6.3/dio-2023-02-16
2023-02-20 14:10:36 -08:00
ext4
ext4: clean up error handling in __ext4_fill_super()
2023-04-28 12:56:40 -04:00
f2fs
f2fs-for-6.3-rc1
2023-02-27 16:18:51 -08:00
fat
There is no particular theme here - mainly quick hits all over the tree.
2023-02-23 17:55:40 -08:00
freevxfs
There is no particular theme here - mainly quick hits all over the tree.
2023-02-23 17:55:40 -08:00
fscache
fscache: Use clear_and_wake_up_bit() in fscache_create_volume_work()
2023-01-30 12:51:54 +00:00
fuse
fuse update for 6.3
2023-02-27 09:53:58 -08:00
gfs2
Driver core changes for 6.3-rc1
2023-02-24 12:58:55 -08:00
hfs
There is no particular theme here - mainly quick hits all over the tree.
2023-02-23 17:55:40 -08:00
hfsplus
fs: hfsplus: fix UAF issue in hfsplus_put_super
2023-03-02 21:54:23 -08:00
hostfs
This pull request contains the following changes for UML:
2023-03-01 09:13:00 -08:00
hpfs
fs: port ->rename() to pass mnt_idmap
2023-01-19 09:24:26 +01:00
hugetlbfs
- Daniel Verkamp has contributed a memfd series ("mm/memfd: add
2023-02-23 17:09:35 -08:00
iomap
fs: Add FGP_WRITEBEGIN
2023-04-06 13:39:50 -04:00
isofs
- hfs and hfsplus kmap API modernization from Fabio Francesco
2022-10-12 11:00:22 -07:00
jbd2
jdb2: Don't refuse invalidation of already invalidated buffers
2023-04-14 19:38:50 -04:00
jffs2
This pull request contains updates for JFFS2, UBI and UBIFS
2023-03-01 09:06:51 -08:00
jfs
Just one simple sanity check
2023-03-01 08:47:19 -08:00
kernfs
Driver core changes for 6.3-rc1
2023-02-24 12:58:55 -08:00
ksmbd
46 fs/cifs (smb3 client) changesets, 37 in fs/cifs and 9 for related helper functions and cleanup outside from Dave Howells and Willy
2023-02-22 17:12:44 -08:00
lockd
sysctl-6.3-rc1
2023-02-23 14:16:56 -08:00
minix
Merge branch 'work.minix' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2023-02-24 19:01:15 -08:00
netfs
fs: Add FGP_WRITEBEGIN
2023-04-06 13:39:50 -04:00
nfs
fs: Add FGP_WRITEBEGIN
2023-04-06 13:39:50 -04:00
nfs_common
filelock: move file locking definitions to separate header file
2023-01-11 06:52:32 -05:00
nfsd
nfsd-6.3 fixes:
2023-03-10 08:45:30 -08:00
nilfs2
There is no particular theme here - mainly quick hits all over the tree.
2023-02-23 17:55:40 -08:00
nls
…
notify
RCU pull request for v6.3
2023-02-21 10:45:51 -08:00
ntfs
There is no particular theme here - mainly quick hits all over the tree.
2023-02-23 17:55:40 -08:00
ntfs3
- Daniel Verkamp has contributed a memfd series ("mm/memfd: add
2023-02-23 17:09:35 -08:00
ocfs2
ocfs2: fix data corruption after failed write
2023-03-07 17:04:55 -08:00
omfs
fs: port inode_init_owner() to mnt_idmap
2023-01-19 09:24:28 +01:00
openpromfs
…
orangefs
- Daniel Verkamp has contributed a memfd series ("mm/memfd: add
2023-02-23 17:09:35 -08:00
overlayfs
fs.idmapped.v6.3
2023-02-20 11:53:11 -08:00
proc
capability: just use a 'u64' instead of a 'u32[2]' array
2023-03-01 10:01:22 -08:00
pstore
pstore updates for v6.2-rc1-fixes
2022-12-23 11:55:54 -08:00
qnx4
…
qnx6
fs/qnx6: delete unnecessary checks before brelse()
2022-09-11 21:55:07 -07:00
quota
RCU pull request for v6.3
2023-02-21 10:45:51 -08:00
ramfs
- Daniel Verkamp has contributed a memfd series ("mm/memfd: add
2023-02-23 17:09:35 -08:00
reiserfs
- Daniel Verkamp has contributed a memfd series ("mm/memfd: add
2023-02-23 17:09:35 -08:00
romfs
mm/nommu: factor out check for NOMMU shared mappings into is_nommu_shared_mapping()
2023-01-18 17:12:56 -08:00
smbfs_common
smb3: Replace smb2pdu 1-element arrays with flex-arrays
2023-02-20 17:25:43 -06:00
squashfs
revert "squashfs: harden sanity check in squashfs_read_xattr_id_table"
2023-02-03 17:52:25 -08:00
sysfs
…
sysv
Merge branch 'work.sysv' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2023-02-24 19:03:26 -08:00
tracefs
fs: port ->mkdir() to pass mnt_idmap
2023-01-19 09:24:26 +01:00
ubifs
This pull request contains updates for JFFS2, UBI and UBIFS
2023-03-01 09:06:51 -08:00
udf
udf: Warn if block mapping is done for in-ICB files
2023-03-06 16:38:25 +01:00
ufs
fs: port inode_init_owner() to mnt_idmap
2023-01-19 09:24:28 +01:00
unicode
…
vboxsf
fs: port ->rename() to pass mnt_idmap
2023-01-19 09:24:26 +01:00
verity
fsverity: support verifying data from large folios
2023-01-27 14:46:31 -08:00
xfs
xfs: fix off-by-one-block in xfs_discard_folio()
2023-03-05 15:13:23 -08:00
zonefs
zonefs changes for 6.3-rc1
2023-02-22 14:11:54 -08:00
aio.c
Merge branch 'mm-hotfixes-stable' into mm-stable
2023-02-10 15:34:48 -08:00
anon_inodes.c
dynamic_dname(): drop unused dentry argument
2022-08-20 11:34:04 -04:00
attr.c
fs.idmapped.v6.3
2023-02-20 11:53:11 -08:00
bad_inode.c
fs: port ->permission() to pass mnt_idmap
2023-01-19 09:24:28 +01:00
binfmt_elf_fdpic.c
elfcore: Add a cprm parameter to elf_core_extra_{phdrs,data_size}
2023-01-05 15:12:12 +00:00
binfmt_elf_test.c
…
binfmt_elf.c
Linux 6.2-rc6
2023-01-31 15:01:20 +01:00
binfmt_flat.c
…
binfmt_misc.c
binfmt_misc: fix shift-out-of-bounds in check_special_flags
2022-12-02 13:57:04 -08:00
binfmt_script.c
…
buffer.c
- Daniel Verkamp has contributed a memfd series ("mm/memfd: add
2023-02-23 17:09:35 -08:00
char_dev.c
chardev: fix error handling in cdev_device_add()
2022-12-02 17:48:59 +01:00
compat_binfmt_elf.c
…
coredump.c
- Daniel Verkamp has contributed a memfd series ("mm/memfd: add
2023-02-23 17:09:35 -08:00
d_path.c
d_path.c: typo fix...
2022-08-20 11:34:33 -04:00
dax.c
fsdax: dax_unshare_iter() should return a valid length
2023-02-03 17:52:24 -08:00
dcache.c
tmpfile API change
2022-10-10 19:45:17 -07:00
direct-io.c
fs: move sb_init_dio_done_wq out of direct-io.c
2023-01-26 10:30:56 -07:00
drop_caches.c
…
eventfd.c
eventfd: provide a eventfd_signal_mask() helper
2022-11-22 06:07:55 -07:00
eventpoll.c
eventpoll: add EPOLL_URING_WAKE poll wakeup flag
2022-11-21 07:45:29 -07:00
exec.c
- Daniel Verkamp has contributed a memfd series ("mm/memfd: add
2023-02-23 17:09:35 -08:00
fcntl.c
fs.idmapped.v6.3
2023-02-20 11:53:11 -08:00
fhandle.c
do_sys_name_to_handle(): constify path
2022-09-01 17:36:39 -04:00
file_table.c
filelock: move file locking definitions to separate header file
2023-01-11 06:52:32 -05:00
file.c
fs: prevent out-of-bounds array speculation when closing a file descriptor
2023-03-09 22:46:21 -05:00
filesystems.c
…
fs_context.c
…
fs_parser.c
ext4: journal_path mount options should follow links
2022-12-01 10:46:54 -05:00
fs_pin.c
…
fs_struct.c
…
fs_types.c
…
fs-writeback.c
mm: convert mem_cgroup_css_from_page() to mem_cgroup_css_from_folio()
2023-02-02 22:33:19 -08:00
fsopen.c
…
init.c
fs: port ->permission() to pass mnt_idmap
2023-01-19 09:24:28 +01:00
inode.c
fs.idmapped.v6.3
2023-02-20 11:53:11 -08:00
internal.h
for-6.3/dio-2023-02-16
2023-02-20 14:10:36 -08:00
ioctl.c
fs: port inode_owner_or_capable() to mnt_idmap
2023-01-19 09:24:29 +01:00
Kconfig
fs: build the legacy direct I/O code conditionally
2023-01-26 10:30:56 -07:00
Kconfig.binfmt
Xtensa updates for v6.1
2022-10-10 14:21:11 -07:00
kernel_read_file.c
…
libfs.c
fs.idmapped.v6.3
2023-02-20 11:53:11 -08:00
locks.c
filelocks: use mount idmapping for setlease permission check
2023-03-09 22:36:12 +01:00
Makefile
for-6.3/dio-2023-02-16
2023-02-20 14:10:36 -08:00
mbcache.c
ext4: fix deadlock due to mbcache entry corruption
2022-12-08 21:49:25 -05:00
mnt_idmapping.c
fs: move mnt_idmap
2023-01-19 09:24:30 +01:00
mount.h
…
mpage.c
- Daniel Verkamp has contributed a memfd series ("mm/memfd: add
2023-02-23 17:09:35 -08:00
namei.c
NFSD 6.3 Release Notes
2023-02-22 14:21:40 -08:00
namespace.c
Merge branch 'work.namespace' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2023-02-24 19:20:07 -08:00
no-block.c
…
nsfs.c
nsfs: repair kernel-doc for ns_match()
2023-01-11 15:47:40 -05:00
open.c
vfs: avoid duplicating creds in faccessat if possible
2023-02-27 16:39:19 -08:00
pipe.c
dynamic_dname(): drop unused dentry argument
2022-08-20 11:34:04 -04:00
pnode.c
pnode: terminate at peers of source
2022-12-21 14:45:25 +01:00
pnode.h
…
posix_acl.c
fs.acl.v6.3
2023-02-20 12:14:33 -08:00
proc_namespace.c
…
read_write.c
iov_iter work; most of that is about getting rid of
2022-12-12 18:29:54 -08:00
readdir.c
Change calling conventions for filldir_t
2022-08-17 17:25:04 -04:00
remap_range.c
fs: port i_{g,u}id_into_vfs{g,u}id() to mnt_idmap
2023-01-19 09:24:29 +01:00
select.c
…
seq_file.c
use less confusing names for iov_iter direction initializers
2022-11-25 13:01:55 -05:00
signalfd.c
…
splice.c
splice: Remove redundant assignment to ret
2023-03-09 10:10:31 +01:00
stack.c
…
stat.c
fs.idmapped.v6.3
2023-02-20 11:53:11 -08:00
statfs.c
…
super.c
for-6.3/dio-2023-02-16
2023-02-20 14:10:36 -08:00
sync.c
…
sysctls.c
…
timerfd.c
…
userfaultfd.c
mm: replace vma->vm_flags direct modifications with modifier calls
2023-02-09 16:51:39 -08:00
utimes.c
fs.idmapped.v6.3
2023-02-20 11:53:11 -08:00
xattr.c
fs.idmapped.v6.3
2023-02-20 11:53:11 -08:00