btrfs: add check to sysfs handler of label

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Add a sanity check for the fs_info as we will dereference it, similar to
what the 'store features' handler does.

Signed-off-by: David Sterba <dsterba@suse.com>

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David Sterba 2016-04-26 16:03:57 +02:00

parent ee6111386a

commit 66ac9fe7ba

1 changed files with 3 additions and 0 deletions

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fs/btrfs/sysfs.c

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