[PATCH] shpchp - cleanup check command status

This patch cleanups codes that check the command status. For this, it
introduces a new semaphore "cmd_sem" for each controller.

Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/pci/hotplug/shpchp.h b/drivers/pci/hotplug/shpchp.h
index f6d606dde691..b1e2a7705835 100644
--- a/drivers/pci/hotplug/shpchp.h
+++ b/drivers/pci/hotplug/shpchp.h
@@ -80,6 +80,7 @@ struct event_info {
 struct controller {
         struct list_head ctrl_list;
         struct mutex crit_sect;         /* critical section mutex */
+        struct mutex cmd_lock;          /* command lock */
         struct php_ctlr_state_s *hpc_ctlr_handle; /* HPC controller handle */
         int num_slots;                  /* Number of slots on ctlr */
         int slot_num_inc;               /* 1 or -1 */