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tang.junhui 2992aceed9 dm table: fix missing dm_put_target_type() in dm_table_add_target() ...

commit dafa724bf5 upstream.

dm_get_target_type() was previously called so any error returned from
dm_table_add_target() must first call dm_put_target_type().  Otherwise
the DM target module's reference count will leak and the associated
kernel module will be unable to be removed.

Also, leverage the fact that r is already -EINVAL and remove an extra
newline.

Fixes: 36a0456 ("dm table: add immutable feature")
Fixes: cc6cbe1 ("dm table: add always writeable feature")
Fixes: 3791e2f ("dm table: add singleton feature")
Signed-off-by: tang.junhui <tang.junhui@zte.com.cn>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
[bwh: Backported to 3.16: adjuat context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

2017-02-23 03:54:20 +00:00

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