Btrfs: do not overwrite scrub error with fault error in scrub ioctl

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If scrub returned an error and then the copy_to_user() call did not
succeed, we would overwrite the error returned by scrub with -EFAULT.
Fix that by calling copy_to_user() only if btrfs_scrub_dev() returned
success.

Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

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Filipe Manana 2018-12-14 19:50:17 +00:00 • committed by David Sterba

parent bc9a8bf79c

commit 06fe39ab15

1 changed files with 1 additions and 1 deletions

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fs/btrfs/ioctl.c

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