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| author | Filipe Manana <fdmanana@suse.com> | 2019-01-08 11:42:09 +0000 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2019-02-25 14:13:20 +0100 |
| commit | d3a53286c191c3d598eae09a68bb99a0db4e2466 (patch) | |
| tree | 865efa0570bd819dca70fb7119b96fde2781ed41 /mm/cma.c | |
| parent | 0f39b6056323e3d5e82cdef0f811713fe05fbb12 (diff) | |
| download | linux-stable-d3a53286c191c3d598eae09a68bb99a0db4e2466.tar.gz linux-stable-d3a53286c191c3d598eae09a68bb99a0db4e2466.tar.bz2 linux-stable-d3a53286c191c3d598eae09a68bb99a0db4e2466.zip | |
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>
Diffstat (limited to 'mm/cma.c')
0 files changed, 0 insertions, 0 deletions