From 1f12900ab52304a7c41714b6ad86990eb428fbc9 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Fri, 15 Sep 2023 15:55:23 +0300 Subject: [PATCH] bcachefs: fs-ioctl: Fix copy_to_user() error code 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 Signed-off-by: Kent Overstreet --- 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 141bcced031e2..0679b2f79fd6f 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, -- 2.30.2