[SCSI] libfc: Return a valid return code in fc_fcp_pkt_abort()

Here ticks_left is added to record the result of
wait_for_completion_timeout().

[ Patch title and description edited by Robert Love
  to make it more descriptive  ]

Signed-off-by: Hillf Danton <dhillf@gmail.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

diff --git a/drivers/scsi/libfc/fc_fcp.c b/drivers/scsi/libfc/fc_fcp.c
index 21a64d4..ba639fa 100644 (file)
--- a/drivers/scsi/libfc/fc_fcp.c
+++ b/drivers/scsi/libfc/fc_fcp.c
@@ -1202,6 +1202,7 @@ unlock:
 static int fc_fcp_pkt_abort(struct fc_fcp_pkt *fsp)
 {
        int rc = FAILED;
+       unsigned long ticks_left;
 
        if (fc_fcp_send_abort(fsp))
                return FAILED;
@@ -1210,13 +1211,13 @@ static int fc_fcp_pkt_abort(struct fc_fcp_pkt *fsp)
        fsp->wait_for_comp = 1;
 
        spin_unlock_bh(&fsp->scsi_pkt_lock);
-       rc = wait_for_completion_timeout(&fsp->tm_done, FC_SCSI_TM_TOV);
+       ticks_left = wait_for_completion_timeout(&fsp->tm_done,
+                                                       FC_SCSI_TM_TOV);
        spin_lock_bh(&fsp->scsi_pkt_lock);
        fsp->wait_for_comp = 0;
 
-       if (!rc) {
+       if (!ticks_left) {
                FC_FCP_DBG(fsp, "target abort cmd  failed\n");
-               rc = FAILED;
        } else if (fsp->state & FC_SRB_ABORTED) {
                FC_FCP_DBG(fsp, "target abort cmd  passed\n");
                rc = SUCCESS;