From: Alexander Potapenko <glider@xxxxxxxxxx>
[ Upstream commit eef034ac6690118c88f357b00e2b3239c9d8575d ]
When aops->write_begin() does not initialize fsdata, KMSAN may report
an error passing the latter to aops->write_end().
Fix this by unconditionally initializing fsdata.
Fixes: f2b6a16eb8f5 ("fs: affs convert to new aops")
Suggested-by: Eric Biggers <ebiggers@xxxxxxxxxx>
Signed-off-by: Alexander Potapenko <glider@xxxxxxxxxx>
Reviewed-by: David Sterba <dsterba@xxxxxxxx>
Signed-off-by: David Sterba <dsterba@xxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
fs/affs/file.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/affs/file.c b/fs/affs/file.c
index 75ebd2b576ca..25d480ea797b 100644
--- a/fs/affs/file.c
+++ b/fs/affs/file.c
@@ -881,7 +881,7 @@ affs_truncate(struct inode *inode)
if (inode->i_size > AFFS_I(inode)->mmu_private) {
struct address_space *mapping = inode->i_mapping;
struct page *page;
- void *fsdata;
+ void *fsdata = NULL;
loff_t isize = inode->i_size;
int res;
--
2.39.0
