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Geert Uytterhoeven 1be7f9be0e xfs: Fix uninitialized variable in xfs_reflink_reserve_cow_range() 
with gcc 4.1.2:

    fs/xfs/xfs_reflink.c: In function xfs_reflink_reserve_cow_range:
    fs/xfs/xfs_reflink.c:327: warning: error may be used uninitialized in this function

Indeed, if "count" is zero, the function will return an uninitialized
error value.

While "count" is unlikely to be zero, this function is called through
the public iomap API. Hence fix this by preinitializing error to zero.

Fixes: 2a06705cd5954030 ("xfs: create delalloc extents in CoW fork")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dave Chinner <david@fromorbit.com>
2016-10-20 15:41:48 +11:00
..
libxfs
xfs: remove redundant assignment of ifp
2016-10-20 15:40:55 +11:00
Kconfig
xfs: implement iomap based buffered write path
2016-06-21 09:53:44 +10:00
kmem.c
xfs: improve kmem_realloc
2016-04-06 09:47:01 +10:00
kmem.h
xfs: improve kmem_realloc
2016-04-06 09:47:01 +10:00
Makefile
xfs: introduce the CoW fork
2016-10-04 18:06:40 -07:00
mrlock.h
…
uuid.c
…
uuid.h
…
xfs_acl.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2016-10-10 20:16:43 -07:00
xfs_acl.h
xfs: Change how listxattr generates synthetic attributes
2015-12-06 21:34:16 -05:00
xfs_aops.c
xfs: convert COW blocks to real blocks before unwritten extent conversion
2016-10-11 09:03:19 +11:00
xfs_aops.h
xfs: allocate delayed extents in CoW fork
2016-10-04 18:06:41 -07:00
xfs_attr_inactive.c
xfs: make several functions static
2016-06-01 17:38:15 +10:00
xfs_attr_list.c
xfs: make several functions static
2016-06-01 17:38:15 +10:00
xfs_attr.h
xfs: remove put_value from attr ->put_listent context
2016-04-06 07:57:45 +10:00
xfs_bmap_item.c
xfs: when replaying bmap operations, don't let unlinked inodes get reaped
2016-10-04 11:05:44 -07:00
xfs_bmap_item.h
xfs: log bmap intent items
2016-10-04 11:05:44 -07:00
xfs_bmap_util.c
xfs: implement swapext for rmap filesystems
2016-10-05 16:26:32 -07:00
xfs_bmap_util.h
xfs: change xfs_bmap_{finish,cancel,init,free} -> xfs_defer_*
2016-08-03 11:18:10 +10:00
xfs_buf_item.c
xfs: normalize "infinite" retries in error configs
2016-09-14 07:51:30 +10:00
xfs_buf_item.h
xfs: fix non-debug build warnings
2015-08-25 10:05:13 +10:00
xfs_buf.c
xfs: prevent dropping ioend completions during buftarg wait
2016-08-26 16:01:59 +10:00
xfs_buf.h
xfs: track and serialize in-flight async buffers against unmount
2016-07-20 11:15:28 +10:00
xfs_dir2_readdir.c
xfs: return an error when an inline directory is too small
2016-10-03 09:11:15 -07:00
xfs_discard.c
xfs: rmap btree requires more reserved free space
2016-08-03 11:38:24 +10:00
xfs_discard.h
…
xfs_dquot_item.c
xfs: allocate log vector buffers outside CIL context lock
2016-07-22 09:52:35 +10:00
xfs_dquot_item.h
…
xfs_dquot.c
xfs: rename flist/free_list to dfops
2016-08-03 11:19:29 +10:00
xfs_dquot.h
…
xfs_error.c
Merge branch 'xfs-4.8-misc-fixes-3' into for-next
2016-07-20 11:51:08 +10:00
xfs_error.h
xfs: simulate per-AG reservations being critically low
2016-10-05 16:26:31 -07:00
xfs_export.c
xfs: abstract block export operations from nfsd layouts
2016-07-15 15:31:29 -04:00
xfs_export.h
…
xfs_extent_busy.c
xfs: remote attribute blocks aren't really userdata
2016-09-26 08:21:28 +10:00
xfs_extent_busy.h
…
xfs_extfree_item.c
xfs: remove unnecessary parentheses from log redo item recovery functions
2016-08-03 12:29:32 +10:00
xfs_extfree_item.h
xfs: refactor redo intent item processing
2016-08-03 11:23:49 +10:00
xfs_file.c
xfs: reflink update for 4.9-rc1
2016-10-13 20:28:22 -07:00
xfs_filestream.c
Merge branch 'xfs-4.9-log-recovery-fixes' into for-next
2016-10-03 09:56:28 +11:00
xfs_filestream.h
…
xfs_fsops.c
xfs: preallocate blocks for worst-case btree expansion
2016-10-05 16:26:27 -07:00
xfs_fsops.h
xfs: preallocate blocks for worst-case btree expansion
2016-10-05 16:26:27 -07:00
xfs_globals.c
xfs: garbage collect old cowextsz reservations
2016-10-05 16:26:28 -07:00
xfs_icache.c
xfs: garbage collect old cowextsz reservations
2016-10-05 16:26:28 -07:00
xfs_icache.h
xfs: garbage collect old cowextsz reservations
2016-10-05 16:26:28 -07:00
xfs_icreate_item.c
…
xfs_icreate_item.h
…
xfs_inode_item.c
xfs: create a separate cow extent size hint for the allocator
2016-10-05 16:26:26 -07:00
xfs_inode_item.h
xfs: remove timestamps from incore inode
2016-02-09 16:54:58 +11:00
xfs_inode.c
xfs: reflink update for 4.9-rc1
2016-10-13 20:28:22 -07:00
xfs_inode.h
xfs: set a default CoW extent size of 32 blocks
2016-10-05 16:26:31 -07:00
xfs_ioctl32.c
xfs: don't pass ioflags around in the ioctl path
2016-07-20 11:29:35 +10:00
xfs_ioctl32.h
…
xfs_ioctl.c
xfs: reflink update for 4.9-rc1
2016-10-13 20:28:22 -07:00
xfs_ioctl.h
xfs: don't pass ioflags around in the ioctl path
2016-07-20 11:29:35 +10:00
xfs_iomap.c
xfs: create a separate cow extent size hint for the allocator
2016-10-05 16:26:26 -07:00
xfs_iomap.h
xfs: create a separate cow extent size hint for the allocator
2016-10-05 16:26:26 -07:00
xfs_iops.c
xfs: reflink update for 4.9-rc1
2016-10-13 20:28:22 -07:00
xfs_iops.h
xfs: Propagate dentry down to inode_change_ok()
2016-09-22 10:56:19 +02:00
xfs_itable.c
xfs: create a separate cow extent size hint for the allocator
2016-10-05 16:26:26 -07:00
xfs_itable.h
…
xfs_linux.h
xfs: garbage collect old cowextsz reservations
2016-10-05 16:26:28 -07:00
xfs_log_cil.c
xfs: allocate log vector buffers outside CIL context lock
2016-07-22 09:52:35 +10:00
xfs_log_priv.h
xfs: rework log recovery to submit buffers on LSN boundaries
2016-09-26 08:22:16 +10:00
xfs_log_recover.c
xfs: when replaying bmap operations, don't let unlinked inodes get reaped
2016-10-04 11:05:44 -07:00
xfs_log.c
Merge branch 'xfs-4.8-buf-fixes' into for-next
2016-07-20 11:53:35 +10:00
xfs_log.h
xfs: make several functions static
2016-06-01 17:38:15 +10:00
xfs_message.c
xfs: more info from kmem deadlocks and high-level error msgs
2015-10-12 16:04:45 +11:00
xfs_message.h
…
xfs_mount.c
xfs: garbage collect old cowextsz reservations
2016-10-05 16:26:28 -07:00
xfs_mount.h
xfs: garbage collect old cowextsz reservations
2016-10-05 16:26:28 -07:00
xfs_mru_cache.c
xfs: xfs_mru_cache_insert() should use GFP_NOFS
2015-03-25 14:57:53 +11:00
xfs_mru_cache.h
…
xfs_ondisk.h
xfs: define the on-disk refcount btree format
2016-10-03 09:11:18 -07:00
xfs_pnfs.c
xfs: introduce refcount btree definitions
2016-10-03 09:11:16 -07:00
xfs_pnfs.h
xfs: abstract block export operations from nfsd layouts
2016-07-15 15:31:29 -04:00
xfs_qm_bhv.c
…
xfs_qm_syscalls.c
xfs: better xfs_trans_alloc interface
2016-04-06 09:19:55 +10:00
xfs_qm.c
xfs: better xfs_trans_alloc interface
2016-04-06 09:19:55 +10:00
xfs_qm.h
xfs: Split default quota limits by quota type
2016-02-08 11:27:55 +11:00
xfs_quota.h
xfs: fix quota block reservation leak when tp allocates and frees blocks
2015-06-01 07:15:37 +10:00
xfs_quotaops.c
xfs: wire up Q_XGETNEXTQUOTA / get_nextdqblk
2016-02-08 11:27:38 +11:00
xfs_refcount_item.c
xfs: store in-progress CoW allocations in the refcount btree
2016-10-05 16:26:05 -07:00
xfs_refcount_item.h
xfs: log refcount intent items
2016-10-03 09:11:21 -07:00
xfs_reflink.c
xfs: Fix uninitialized variable in xfs_reflink_reserve_cow_range()
2016-10-20 15:41:48 +11:00
xfs_reflink.h
xfs: garbage collect old cowextsz reservations
2016-10-05 16:26:28 -07:00
xfs_rmap_item.c
xfs: convert unwritten status of reverse mappings for shared files
2016-10-05 16:26:29 -07:00
xfs_rmap_item.h
xfs: convert RUI log formats to use variable length arrays
2016-09-19 10:24:27 +10:00
xfs_rtalloc.c
xfs: rename flist/free_list to dfops
2016-08-03 11:19:29 +10:00
xfs_rtalloc.h
xfs: make several functions static
2016-06-01 17:38:15 +10:00
xfs_stats.c
xfs: introduce refcount btree definitions
2016-10-03 09:11:16 -07:00
xfs_stats.h
xfs: introduce refcount btree definitions
2016-10-03 09:11:16 -07:00
xfs_super.c
xfs: check inode reflink flag before calling reflink functions
2016-10-10 16:47:32 +11:00
xfs_super.h
xfs: quiesce the filesystem after recovery on readonly mount
2016-09-26 08:21:44 +10:00
xfs_symlink.c
xfs: rename flist/free_list to dfops
2016-08-03 11:19:29 +10:00
xfs_symlink.h
…
xfs_sysctl.c
xfs: garbage collect old cowextsz reservations
2016-10-05 16:26:28 -07:00
xfs_sysctl.h
xfs: garbage collect old cowextsz reservations
2016-10-05 16:26:28 -07:00
xfs_sysfs.c
xfs: normalize "infinite" retries in error configs
2016-09-14 07:51:30 +10:00
xfs_sysfs.h
xfs: configurable error behavior via sysfs
2016-05-18 10:58:51 +10:00
xfs_trace.c
xfs: rework xfs_bmap_free callers to use xfs_defer_ops
2016-08-03 11:15:38 +10:00
xfs_trace.h
xfs: reflink update for 4.9-rc1
2016-10-13 20:28:22 -07:00
xfs_trans_ail.c
xfs: Make xfsaild freezeable again
2016-02-08 14:59:07 +11:00
xfs_trans_bmap.c
xfs: implement deferred bmbt map/unmap operations
2016-10-04 11:05:44 -07:00
xfs_trans_buf.c
xfs: remove XBF_STALE flag wrapper macros
2016-02-10 15:01:11 +11:00
xfs_trans_dquot.c
xfs: Split default quota limits by quota type
2016-02-08 11:27:55 +11:00
xfs_trans_extfree.c
xfs: set up per-AG free space reservations
2016-09-19 10:30:52 +10:00
xfs_trans_inode.c
fs: Replace current_fs_time() with current_time()
2016-09-27 21:06:22 -04:00
xfs_trans_priv.h
xfs: add helper to conditionally remove items from the AIL
2015-08-19 10:01:08 +10:00
xfs_trans_refcount.c
xfs: connect refcount adjust functions to upper layers
2016-10-03 09:11:22 -07:00
xfs_trans_rmap.c
xfs: add shared rmap map/unmap/convert log item types
2016-10-05 16:26:29 -07:00
xfs_trans.c
Merge branch 'xfs-4.9-reflink-prep' into for-next
2016-10-03 09:52:31 +11:00
xfs_trans.h
xfs: implement deferred bmbt map/unmap operations
2016-10-04 11:05:44 -07:00
xfs_xattr.c
Make __xfs_xattr_put_listen preperly report errors.
2016-09-14 07:40:35 +10:00
xfs.h
…