| commit | d3a53286c191c3d598eae09a68bb99a0db4e2466 | [log] [tgz] |
|---|---|---|
| author | Filipe Manana <fdmanana@suse.com> | Tue Jan 08 11:42:09 2019 +0000 |
| committer | David Sterba <dsterba@suse.com> | Mon Feb 25 14:13:20 2019 +0100 |
| tree | 865efa0570bd819dca70fb7119b96fde2781ed41 | |
| parent | 0f39b6056323e3d5e82cdef0f811713fe05fbb12 [diff] |
Btrfs: do not overwrite error return value in the device replace ioctl If the call to btrfs_dev_replace_by_ioctl() failed we would overwrite the error returned to user space with -EFAULT if the call to copy_to_user() failed as well. Fix that by calling copy_to_user() only if no error happened before or a device replace operation was canceled. Signed-off-by: Filipe Manana <fdmanana@suse.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>