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David Howells acc080d15d afs: Fix tracing deref-before-check 
The patch dca54a7bbb8c: "afs: Add tracing for cell refcount and active user
count" from Oct 13, 2020, leads to the following Smatch complaint:

    fs/afs/cell.c:596 afs_unuse_cell()
    warn: variable dereferenced before check 'cell' (see line 592)

Fix this by moving the retrieval of the cell debug ID to after the check of
the validity of the cell pointer.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Fixes: dca54a7bbb8c ("afs: Add tracing for cell refcount and active user count")
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Dan Carpenter <dan.carpenter@oracle.com>
2020-10-27 22:05:56 +00:00
..
addr_list.c
afs: Use kfree_rcu() instead of casting kfree() to rcu_callback_t
2020-03-13 10:47:33 -07:00
afs_cm.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
afs_fs.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
afs_vl.h
afs: Implement client support for the YFSVL.GetCellName RPC op
2020-06-04 15:37:57 +01:00
afs.h
afs: Implement client support for the YFSVL.GetCellName RPC op
2020-06-04 15:37:57 +01:00
cache.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
callback.c
afs: Fix the by-UUID server tree to allow servers with the same UUID
2020-06-04 15:37:57 +01:00
cell.c
afs: Fix tracing deref-before-check
2020-10-27 22:05:56 +00:00
cmservice.c
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
dir_edit.c
afs: Remove set but not used variables 'before', 'after'
2019-11-21 20:36:00 +00:00
dir_silly.c
afs: Fix silly rename
2020-06-16 22:00:28 +01:00
dir.c
treewide: Remove uninitialized_var() usage
2020-07-16 12:35:15 -07:00
dynroot.c
afs: Add tracing for cell refcount and active user count
2020-10-16 14:39:21 +01:00
file.c
afs: Fix copy_file_range()
2020-10-27 22:05:56 +00:00
flock.c
afs: Remove erroneous fallthough annotation
2020-08-27 14:33:01 -05:00
fs_operation.c
afs: Fix key ref leak in afs_put_operation()
2020-08-20 10:41:45 -07:00
fs_probe.c
rxrpc: Make rxrpc_kernel_get_srtt() indicate validity
2020-08-20 18:21:28 +01:00
fsclient.c
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
inode.c
afs: Fix deadlock between writeback and truncate
2020-10-08 10:50:55 -07:00
internal.h
afs: Add tracing for cell refcount and active user count
2020-10-16 14:39:21 +01:00
Kconfig
docs: filesystems: fix renamed references
2020-04-20 15:45:22 -06:00
main.c
afs: Fix rapid cell addition/removal by not using RCU on cells tree
2020-10-16 14:04:59 +01:00
Makefile
afs: Detect cell aliases 1 - Cells with root volumes
2020-06-04 15:37:57 +01:00
misc.c
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
mntpt.c
afs: Add tracing for cell refcount and active user count
2020-10-16 14:39:21 +01:00
proc.c
afs: Add tracing for cell refcount and active user count
2020-10-16 14:39:21 +01:00
protocol_uae.h
afs: Add support for the UAE error table
2019-06-28 18:37:53 +01:00
protocol_yfs.h
afs: Implement client support for the YFSVL.GetCellName RPC op
2020-06-04 15:37:57 +01:00
rotate.c
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
rxrpc.c
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
security.c
treewide: Remove uninitialized_var() usage
2020-07-16 12:35:15 -07:00
server_list.c
afs: Reorganise volume and server trees to be rooted on the cell
2020-06-04 15:37:57 +01:00
server.c
afs: Don't assert on unpurgeable server records
2020-10-16 14:39:34 +01:00
super.c
afs fixes
2020-10-16 15:22:41 -07:00
vl_alias.c
afs: Add tracing for cell refcount and active user count
2020-10-16 14:39:21 +01:00
vl_list.c
afs: Don't use VL probe running state to make decisions outside probe code
2020-08-20 18:21:28 +01:00
vl_probe.c
afs: Don't use VL probe running state to make decisions outside probe code
2020-08-20 18:21:28 +01:00
vl_rotate.c
afs: Add tracing for cell refcount and active user count
2020-10-16 14:39:21 +01:00
vlclient.c
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
volume.c
afs: Add tracing for cell refcount and active user count
2020-10-16 14:39:21 +01:00
write.c
afs: Fix deadlock between writeback and truncate
2020-10-08 10:50:55 -07:00
xattr.c
afs: Build an abstraction around an "operation" concept
2020-06-04 15:37:17 +01:00
xdr_fs.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 36
2019-05-24 17:27:11 +02:00
yfsclient.c
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00