[SCSI] qla2xxx: Double check for command completion if abort mailbox command fails.

Close a small window where we could falsely fail an abort request if the mailbox
command fails but the command was returned during interrupt context.

Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

drivers/scsi/qla2xxx/qla_os.c

@@ -918,6 +918,10 @@ qla2xxx_eh_abort(struct scsi_cmnd *cmd)
 	qla2x00_sp_compl(ha, sp);
 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
 
+	/* Did the command return during mailbox execution? */
+	if (ret == FAILED && !CMD_SP(cmd))
+		ret = SUCCESS;
+
 	/* Wait for the command to be returned. */
 	if (wait) {
 		if (qla2x00_eh_wait_on_command(cmd) != QLA_SUCCESS) {