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authorAlexander Potapenko <glider@google.com>2022-11-21 12:21:33 +0100
committerAndrew Morton <akpm@linux-foundation.org>2023-02-02 22:50:06 -0800
commite52a418d81fb3c9db187ca9aa519c534b30962a8 (patch)
treed6ba11a43979c8b34a27d69b2ad6b6f713006f24 /fs/hfs
parente5576ac8c972a1884950420c3931ddebd018ee9e (diff)
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fs: hfs: initialize fsdata in hfs_file_truncate()
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. Link: https://lkml.kernel.org/r/20221121112134.407362-4-glider@google.com Signed-off-by: Alexander Potapenko <glider@google.com> Suggested-by: Eric Biggers <ebiggers@kernel.org> Cc: Andreas Dilger <adilger.kernel@dilger.ca> Cc: Chao Yu <chao@kernel.org> Cc: Jaegeuk Kim <jaegeuk@kernel.org> Cc: Theodore Ts'o <tytso@mit.edu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'fs/hfs')
-rw-r--r--fs/hfs/extent.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/hfs/extent.c b/fs/hfs/extent.c
index 3f7e9bef9874..6d1878b99b30 100644
--- a/fs/hfs/extent.c
+++ b/fs/hfs/extent.c
@@ -486,7 +486,7 @@ void hfs_file_truncate(struct inode *inode)
inode->i_size);
if (inode->i_size > HFS_I(inode)->phys_size) {
struct address_space *mapping = inode->i_mapping;
- void *fsdata;
+ void *fsdata = NULL;
struct page *page;
/* XXX: Can use generic_cont_expand? */