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Benjamin Coddington 61ceeebbd2 NFSv4: Fixup smatch warning for ambiguous return 
[ Upstream commit 37ffe06537af3e3ec212e7cbe941046fce0a822f ]

Dan Carpenter reports smatch warning for nfs4_try_migration() when a memory
allocation failure results in a zero return value.  In this case, a
transient allocation failure error will likely be retried the next time the
server responds with NFS4ERR_MOVED.

We can fixup the smatch warning with a small refactor: attempt all three
allocations before testing and returning on a failure.

Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Fixes: c3ed222745d9 ("NFSv4: Fix free of uninitialized nfs4_label on referral lookup.")
Signed-off-by: Benjamin Coddington <bcodding@redhat.com>
Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-06-16 13:39:46 +02:00
..
9p
fs/9p: drop inodes immediately on non-.L too
2024-05-17 11:50:55 +02:00
adfs
…
affs
affs: initialize fsdata in affs_truncate()
2023-02-01 08:27:06 +01:00
afs
afs: Revert "afs: Hide silly-rename files from userspace"
2024-03-26 18:21:34 -04:00
autofs
autofs: fix memory leak of waitqueues in autofs_catatonic_mode
2023-09-23 11:09:54 +02:00
befs
…
bfs
…
btrfs
btrfs: add missing mutex_unlock in btrfs_relocate_sys_chunks()
2024-05-17 11:51:03 +02:00
cachefiles
cachefiles: fix memory leak in cachefiles_add_cache()
2024-03-06 14:38:50 +00:00
ceph
ceph: prevent use-after-free in encode_cap_msg()
2024-02-23 08:55:09 +01:00
cifs
cifs: reinstate original behavior again for forceuid/forcegid
2024-05-02 16:24:43 +02:00
coda
coda: Avoid partial allocation of sig_inputArgs
2023-03-10 09:39:50 +01:00
configfs
configfs: fix possible memory leak in configfs_create_dir()
2022-12-31 13:14:15 +01:00
cramfs
…
crypto
fscrypt: fix keyring memory leak on mount failure
2022-11-10 18:15:37 +01:00
debugfs
debugfs: fix automount d_fsdata usage
2024-01-25 14:52:27 -08:00
devpts
fsnotify: fix fsnotify hooks in pseudo filesystems
2022-02-01 17:27:01 +01:00
dlm
dlm: fix plock lookup when using multiple lockspaces
2023-09-19 12:22:52 +02:00
ecryptfs
ecryptfs: Fix buffer size for tag 66 packet
2024-06-16 13:39:16 +02:00
efivarfs
efivarfs: force RO when remounting if SetVariable is not supported
2024-01-25 14:52:33 -08:00
efs
…
erofs
erofs: apply proper VMA alignment for memory mapped files on THP
2024-03-15 10:48:15 -04:00
exfat
exfat: support dynamic allocate bh for exfat_entry_set_cache
2024-03-01 13:21:56 +01:00
exportfs
exportfs: use pr_debug for unreachable debug statements
2024-04-10 16:19:21 +02:00
ext2
ext2: fix datatype of block number in ext2_xattr_set2()
2023-09-23 11:09:57 +02:00
ext4
ext4: fix potential unnitialized variable
2024-06-16 13:39:32 +02:00
f2fs
f2fs: compress: don't allow unaligned truncation on released compress inode
2024-06-16 13:39:40 +02:00
fat
fat: fix uninitialized field in nostale filehandles
2024-04-10 16:18:35 +02:00
freevxfs
…
fscache
fscache: Remove an unused static variable
2021-10-04 22:13:12 +01:00
fuse
fuse: don't unhash root
2024-04-10 16:18:38 +02:00
gfs2
gfs2: Fix "ignore unlock failures after withdraw"
2024-06-16 13:39:20 +02:00
hfs
hfs: fix missing hfs_bnode_get() in __hfs_bnode_create
2023-03-10 09:39:57 +01:00
hfsplus
fs: hfsplus: remove WARN_ON() from hfsplus_cat_{read,write}_inode()
2023-05-24 17:36:43 +01:00
hostfs
…
hpfs
…
hugetlbfs
fs,hugetlb: fix NULL pointer dereference in hugetlbs_fill_super
2024-03-06 14:38:50 +00:00
iomap
iomap: update ki_pos a little later in iomap_dio_complete
2023-12-08 08:48:05 +01:00
isofs
isofs: handle CDs with bad root inode but good Joliet root directory
2024-04-13 13:01:44 +02:00
jbd2
jbd2: fix soft lockup in journal_finish_inode_data_buffers()
2024-01-25 14:52:29 -08:00
jffs2
jffs2: prevent xattr node from overflowing the eraseblock
2024-06-16 13:39:17 +02:00
jfs
jfs: fix array-index-out-of-bounds in diNewExt
2024-02-23 08:54:39 +01:00
kernfs
fs/kernfs/dir: obey S_ISGID
2024-02-23 08:54:51 +01:00
ksmbd
ksmbd: clear RENAME_NOREPLACE before calling vfs_rename
2024-05-17 11:50:44 +02:00
lockd
Revert "lockd: introduce safe async lock op"
2024-04-27 17:05:23 +02:00
minix
minix: fix bug when opening a file with O_DIRECT
2022-04-13 20:59:10 +02:00
netfs
netfs: fix parameter of cleanup()
2021-12-29 12:28:59 +01:00
nfs
NFSv4: Fixup smatch warning for ambiguous return
2024-06-16 13:39:46 +02:00
nfs_common
nfs: Fix kerneldoc warning shown up by W=1
2021-10-04 22:02:17 +01:00
nfsd
nfsd: don't allow nfsd threads to be signalled.
2024-05-25 16:20:16 +02:00
nilfs2
nilfs2: fix out-of-range warning
2024-06-16 13:39:16 +02:00
nls
fs/nls: make load_nls() take a const parameter
2023-09-19 12:22:27 +02:00
notify
fanotify: Remove obsoleted fanotify_event_has_path()
2024-04-10 16:19:19 +02:00
ntfs
ntfs: check overflow when iterating ATTR_RECORDs
2022-11-26 09:24:52 +01:00
ntfs3
fs/ntfs3: Use variable length array instead of fixed size
2024-06-16 13:39:43 +02:00
ocfs2
fs: ocfs2: namei: check return value of ocfs2_add_entry()
2023-09-19 12:22:34 +02:00
omfs
…
openpromfs
openpromfs: finish conversion to the new mount API
2024-06-16 13:39:16 +02:00
orangefs
orangefs: Fix kmemleak in orangefs_{kernel,client}_debug_init()
2022-12-31 13:14:44 +01:00
overlayfs
ima: detect changes to the backing overlay file
2023-11-28 16:56:29 +00:00
proc
fs/proc: do_task_stat: move thread_group_cputime_adjusted() outside of lock_task_sighand()
2024-03-15 10:48:22 -04:00
pstore
pstore/zone: Add a null pointer check to the psz_kmsg_read
2024-04-13 13:01:43 +02:00
qnx4
qnx4: work around gcc false positive warning bug
2021-09-21 08:36:48 -07:00
qnx6
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quota
quota: Fix rcu annotations of inode dquot pointers
2024-03-26 18:21:27 -04:00
ramfs
shmem: use ramfs_kill_sb() for kill_sb method of ramfs-based tmpfs
2023-07-23 13:47:33 +02:00
reiserfs
reiserfs: Check the return value from __getblk()
2023-09-19 12:22:30 +02:00
romfs
…
smbfs_common
cifs: Fix crash on unload of cifs_arc4.ko
2021-12-14 10:57:12 +01:00
squashfs
revert "squashfs: harden sanity check in squashfs_read_xattr_id_table"
2023-02-22 12:57:07 +01:00
sysfs
fs: sysfs: Fix reference leak in sysfs_break_active_protection()
2024-04-27 17:05:28 +02:00
sysv
sysv: don't call sb_bread() with pointers_lock held
2024-04-13 13:01:44 +02:00
tracefs
tracefs: Add missing lockdown check to tracefs_create_dir()
2023-09-23 11:10:02 +02:00
ubifs
ubifs: Set page uptodate in the correct place
2024-04-10 16:18:35 +02:00
udf
udf: initialize newblock to 0
2023-09-19 12:22:53 +02:00
ufs
…
unicode
…
vboxsf
vboxsf: Avoid an spurious warning if load_nls_xxx() fails
2024-04-10 16:19:38 +02:00
verity
fsverity: skip PKCS#7 parser when keyring is empty
2023-09-19 12:22:52 +02:00
xfs
xfs: read only mounts with fsopen mount API are busted
2024-02-23 08:54:32 +01:00
zonefs
zonefs: Improve error handling
2024-03-01 13:21:43 +01:00
aio.c
fs/aio: Check IOCB_AIO_RW before the struct aio_kiocb conversion
2024-04-10 16:18:46 +02:00
anon_inodes.c
…
attr.c
attr: block mode changes of symlinks
2023-09-23 11:10:01 +02:00
bad_inode.c
…
binfmt_aout.c
…
binfmt_elf_fdpic.c
fs: binfmt_elf_efpic: fix personality for ELF-FDPIC
2023-10-06 13:18:24 +02:00
binfmt_elf.c
fs/binfmt_elf: Fix memory leak in load_elf_binary()
2022-11-03 23:59:12 +09:00
binfmt_flat.c
binfmt_flat: do not stop relocating GOT entries prematurely on riscv
2022-06-09 10:22:26 +02:00
binfmt_misc.c
binfmt_misc: fix shift-out-of-bounds in check_special_flags
2022-12-31 13:14:39 +01:00
binfmt_script.c
…
buffer.c
mm: fs: initialize fsdata passed to write_begin/write_end interface
2022-11-26 09:24:51 +01:00
char_dev.c
chardev: fix error handling in cdev_device_add()
2022-12-31 13:14:30 +01:00
compat_binfmt_elf.c
…
coredump.c
coredump: Use the vma snapshot in fill_files_note
2022-04-08 14:24:18 +02:00
d_path.c
…
dax.c
fsdax: Fix infinite loop in dax_iomap_rw()
2022-09-28 11:11:56 +02:00
dcache.c
fast_dput(): handle underflows gracefully
2024-02-23 08:54:46 +01:00
direct-io.c
…
drop_caches.c
…
eventfd.c
eventfd: prevent underflow for eventfd semaphores
2023-09-19 12:22:30 +02:00
eventpoll.c
epoll: be better about file lifetimes
2024-06-16 13:39:15 +02:00
exec.c
exec: Fix NOMMU linux_binprm::exec in transfer_args_to_stack()
2024-04-10 16:19:31 +02:00
fcntl.c
…
fhandle.c
do_sys_name_to_handle(): use kzalloc() to fix kernel-infoleak
2024-03-26 18:21:14 -04:00
file_table.c
locks: fix TOCTOU race when granting write lease
2022-10-26 12:34:58 +02:00
file.c
file: reinstate f_pos locking optimization for regular files
2023-08-11 15:13:58 +02:00
filesystems.c
…
fs_context.c
fs: avoid empty option when generating legacy mount string
2023-07-23 13:47:34 +02:00
fs_parser.c
…
fs_pin.c
…
fs_struct.c
…
fs_types.c
…
fs-writeback.c
writeback, cgroup: switch inodes with dirty timestamps to release dying cgwbs
2023-11-20 11:08:13 +01:00
fsopen.c
…
init.c
…
inode.c
fs: add ctime accessors infrastructure
2023-12-08 08:48:04 +01:00
internal.h
nfs: use vfs setgid helper
2023-08-30 16:18:19 +02:00
ioctl.c
lsm: new security_file_ioctl_compat() hook
2024-02-23 08:54:25 +01:00
Kconfig
NFSD: Remove CONFIG_NFSD_V3
2024-04-10 16:19:01 +02:00
Kconfig.binfmt
…
kernel_read_file.c
vfs: check fd has read access in kernel_read_file_from_fd()
2021-10-18 20:22:03 -10:00
libfs.c
libfs: add DEFINE_SIMPLE_ATTRIBUTE_SIGNED for signed value
2022-12-31 13:14:03 +01:00
locks.c
filelock: add a new locks_inode_context accessor function
2024-04-10 16:19:23 +02:00
Makefile
io_uring: move to separate directory
2022-12-14 11:37:31 +01:00
mbcache.c
mbcache: Avoid nesting of cache->c_list_lock under bit locks
2023-01-12 11:59:20 +01:00
mount.h
…
mpage.c
…
namei.c
rename(): fix the locking of subdirectories
2024-02-23 08:54:26 +01:00
namespace.c
fs: indicate request originates from old mount API
2024-01-25 14:52:35 -08:00
no-block.c
…
nsfs.c
…
open.c
NFSD: Instantiate a struct file when creating a regular NFSv4 file
2024-04-10 16:19:05 +02:00
pipe.c
fs/pipe: Fix lockdep false-positive in watchqueue pipe_write()
2024-04-10 16:19:42 +02:00
pnode.c
pnode: terminate at peers of source
2023-01-12 11:58:47 +01:00
pnode.h
…
posix_acl.c
fs: fix acl translation
2022-07-02 16:41:17 +02:00
proc_namespace.c
fs: add is_idmapped_mnt() helper
2022-07-02 16:41:14 +02:00
read_write.c
vfs: fix copy_file_range() averts filesystem freeze protection
2022-12-19 12:36:39 +01:00
readdir.c
…
remap_range.c
fs/remap: constrain dedupe of EOF blocks
2022-07-21 21:24:14 +02:00
select.c
fs/select: rework stack allocation hack for clang
2024-03-26 18:21:15 -04:00
seq_file.c
rxrpc: Fix locking issue
2022-07-12 16:35:08 +02:00
signalfd.c
signalfd: use wake_up_pollfree()
2021-12-14 10:57:15 +01:00
splice.c
Revert "fs: check FMODE_LSEEK to control internal pipe splicing"
2022-10-26 12:34:17 +02:00
stack.c
…
stat.c
stat: fix inconsistency between struct stat and struct compat_stat
2022-04-27 14:38:57 +02:00
statfs.c
statfs: enforce statfs[64] structure initialization
2023-05-24 17:36:54 +01:00
super.c
fs: Protect reconfiguration of sb read-write from racing writes
2023-08-11 15:13:58 +02:00
sync.c
vfs: make sync_filesystem return errors from ->sync_fs
2022-04-27 14:38:50 +02:00
timerfd.c
…
userfaultfd.c
userfaultfd: open userfaultfds with O_RDONLY
2022-10-26 12:34:36 +02:00
utimes.c
…
xattr.c
fs: don't audit the capability check in simple_xattr_list()
2022-12-31 13:14:01 +01:00