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btrfs: use kfree() in btrfs_ioctl_get_subvol_info()

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In btrfs_ioctl_get_subvol_info(), there is a classic case where kzalloc()
was incorrectly paired with kzfree(). According to David Sterba, there
isn't any sensitive information in the subvol_info that needs to be
cleared before freeing. So kzfree() isn't really needed, use kfree()
instead.

Signed-off-by: Waiman Long <longman@redhat.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Waiman Long 2020-06-16 11:31:59 -04:00 • committed by David Sterba
parent 5dbb75ed69
commit b091f7fede
1 changed files with 1 additions and 1 deletions
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2
fs/btrfs/ioctl.c
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@ -2692,7 +2692,7 @@ out:
btrfs_put_root(root);
out_free:
btrfs_free_path(path);
kzfree(subvol_info);
kfree(subvol_info);
return ret;
}