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authorChristoph Hellwig <hch@lst.de>2021-12-08 10:12:03 +0100
committerDan Williams <dan.j.williams@intel.com>2021-12-08 07:04:21 -0800
commitde291b5902860d18d6e02000808aeb833ec1feb6 (patch)
treedc8c6ae05967bc267784f8b63936b978f128d204 /fs/iomap
parentb80892ca022e9eb484771a66eb68e12364695a2a (diff)
downloadlinux-de291b5902860d18d6e02000808aeb833ec1feb6.tar.bz2
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.c2
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;