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| author | Christoph Hellwig <hch@lst.de> | 2021-12-08 10:12:03 +0100 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2021-12-08 07:04:21 -0800 |
| commit | de291b5902860d18d6e02000808aeb833ec1feb6 (patch) | |
| tree | dc8c6ae05967bc267784f8b63936b978f128d204 /fs/iomap | |
| parent | b80892ca022e9eb484771a66eb68e12364695a2a (diff) | |
| download | linux-stable-de291b5902860d18d6e02000808aeb833ec1feb6.tar.gz linux-stable-de291b5902860d18d6e02000808aeb833ec1feb6.tar.bz2 linux-stable-de291b5902860d18d6e02000808aeb833ec1feb6.zip | |
iomap: turn the byte variable in iomap_zero_iter into a ssize_t
@bytes also holds the return value from iomap_write_end, which can
contain a negative error value. As @bytes is always less than the page
size even the signed type can hold the entire possible range.
Fixes: c6f40468657d ("fsdax: decouple zeroing from the iomap buffered I/O code")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20211208091203.2927754-1-hch@lst.de
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'fs/iomap')
| -rw-r--r-- | fs/iomap/buffered-io.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/iomap/buffered-io.c b/fs/iomap/buffered-io.c index b1511255b4df..ac040d607f4f 100644 --- a/fs/iomap/buffered-io.c +++ b/fs/iomap/buffered-io.c @@ -883,7 +883,7 @@ static loff_t iomap_zero_iter(struct iomap_iter *iter, bool *did_zero) do { unsigned offset = offset_in_page(pos); - size_t bytes = min_t(u64, PAGE_SIZE - offset, length); + ssize_t bytes = min_t(u64, PAGE_SIZE - offset, length); struct page *page; int status; |