[SCSI] allow sleeping in ->eh_abort_handler()

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
diff --git a/drivers/scsi/ibmmca.c b/drivers/scsi/ibmmca.c
index a3fdead..0018fb5 100644
--- a/drivers/scsi/ibmmca.c
+++ b/drivers/scsi/ibmmca.c
@@ -2118,7 +2118,7 @@
 	return 0;
 }
 
-static int ibmmca_abort(Scsi_Cmnd * cmd)
+static int __ibmmca_abort(Scsi_Cmnd * cmd)
 {
 	/* Abort does not work, as the adapter never generates an interrupt on
 	 * whatever situation is simulated, even when really pending commands
@@ -2225,6 +2225,18 @@
 	}
 }
 
+static int ibmmca_abort(Scsi_Cmnd * cmd)
+{
+	struct Scsi_Host *shpnt = cmd->device->host;
+	int rc;
+
+	spin_lock_irq(shpnt->host_lock);
+	rc = __ibmmca_abort(cmd);
+	spin_unlock_irq(shpnt->host_lock);
+
+	return rc;
+}
+
 static int ibmmca_host_reset(Scsi_Cmnd * cmd)
 {
 	struct Scsi_Host *shpnt;