openvswitch: Release rtnl_lock if ovs_vport_cmd_build_info() failed.
openvswitch: Release rtnl_lock if ovs_vport_cmd_build_info() failed.

This patch fixes a possible lock-up bug where rtnl_lock might not
get released.

Signed-off-by: Ansis Atteka <df3f3586a099c8d42467783abe231c1cf7731ae6@nicira.com>
Signed-off-by: Jesse Gross <a5c95b3d7cb4d0ae05a15c79c79ab458dc2c8f9e@nicira.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs