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| author |   Darrick J. Wong <darrick.wong@oracle.com> | 2018-08-10 17:55:57 -0700 |
|---|---|---|
| committer | Darrick J. Wong <darrick.wong@oracle.com> | 2018-08-14 08:17:02 -0700 |
| commit | 7d5e049e72c4cb933b557c78cbd63285dd8102ce (patch) | |
| tree | 930a949a173a777ff2ec2bf1a1c36ca07ff56bee /fs/iomap.c | |
| parent | xfs: sanity check ag header values in xrep_calc_ag_resblks (diff) | |
| download | linux-dev-7d5e049e72c4cb933b557c78cbd63285dd8102ce.tar.xz linux-dev-7d5e049e72c4cb933b557c78cbd63285dd8102ce.zip | |
iomap: fix WARN_ON_ONCE on uninitialized variable
In commit 9dc55f1389f9569 ("iomap: add support for sub-pagesize buffered
I/O without buffer heads") we moved the initialization of poff (it's
computed from pos) into a separate helper function. Inline data only
ever deals with pos == 0, hence the WARN_ON_ONCE, but now we're testing
an uninitialized variable.
Therefore, change the test to check the parameter directly.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Allison Henderson <allison.henderson@oracle.com>
Reviewed-by: Carlos Maiolino <cmaiolino@redhat.com>
Diffstat (limited to 'fs/iomap.c')
| -rw-r--r-- | fs/iomap.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/iomap.c b/fs/iomap.c index 8bd54c08deee..8a18163dc432 100644 --- a/fs/iomap.c +++ b/fs/iomap.c @@ -290,7 +290,7 @@ iomap_readpage_actor(struct inode *inode, loff_t pos, loff_t length, void *data, sector_t sector; if (iomap->type == IOMAP_INLINE) { - WARN_ON_ONCE(poff); + WARN_ON_ONCE(pos); iomap_read_inline_data(inode, page, iomap); return PAGE_SIZE; } |