The copy_to_user() function returns the number of bytes that it wasn't
able to copy but we want to return -EFAULT to the user.
Fixes: e0750d947352 ("bcachefs: Initial commit")
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
---
fs/bcachefs/fs-ioctl.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/fs/bcachefs/fs-ioctl.c b/fs/bcachefs/fs-ioctl.c
index 141bcced031e..0679b2f79fd6 100644
--- a/fs/bcachefs/fs-ioctl.c
+++ b/fs/bcachefs/fs-ioctl.c
@@ -122,7 +122,10 @@ static int bch2_ioc_fsgetxattr(struct bch_inode_info *inode,
fa.fsx_projid = inode->ei_qid.q[QTYP_PRJ];
- return copy_to_user(arg, &fa, sizeof(fa));
+ if (copy_to_user(arg, &fa, sizeof(fa)))
+ return -EFAULT;
+
+ return 0;
}
static int fssetxattr_inode_update_fn(struct btree_trans *trans,
--
2.39.2
