btrfs: hold a ref on the root in btrfs_ioctl_get_subvol_info

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We look up whatever root userspace has given us, we need to hold a ref
throughout this operation. Use 'root' only for the on fs root and not as
a temporary variable elsewhere.

Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

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Josef Bacik 2020-01-24 09:32:36 -05:00 • committed by David Sterba

parent b8a49ae191

commit 04734e8448

1 changed files with 8 additions and 4 deletions

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fs/btrfs/ioctl.c

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