From: Bart Van Assche <bvanassche@acm.org>
Date: Mon, 29 Jun 2020 15:54:49 -0700
Subject: scsi: qla2xxx: Initialize 'n' before using it
Patch-mainline: v5.9-rc1
Git-commit: 67668b5b13c7ba12f212d4b9067e54354ce5360b
References: bsc#1171688 bsc#1174003

The following code:

	qla82xx_rom_fast_read(ha, 0, &n)

only initializes 'n' if it succeeds. Since 'n' may be reported in a debug
message even if no ROM reads succeeded, initialize 'n' to zero.

This patch fixes the following sparse warning:

qla_nx.c:1218: qla82xx_pinit_from_rom() error: uninitialized symbol 'n'.

Link: https://lore.kernel.org/r/20200629225454.22863-5-bvanassche@acm.org
Cc: Nilesh Javali <njavali@marvell.com>
Cc: Quinn Tran <qutran@marvell.com>
Cc: Himanshu Madhani <himanshu.madhani@oracle.com>
Cc: Martin Wilck <mwilck@suse.com>
Cc: Roman Bolshakov <r.bolshakov@yadro.com>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Reviewed-by: Shyam Sundar <ssundar@marvell.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
---
 drivers/scsi/qla2xxx/qla_nx.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/scsi/qla2xxx/qla_nx.c
+++ b/drivers/scsi/qla2xxx/qla_nx.c
@@ -1167,6 +1167,7 @@ qla82xx_pinit_from_rom(scsi_qla_host_t *
 	 * Offset 4: Offset and number of addr/value pairs
 	 * that present in CRB initialize sequence
 	 */
+	n = 0;
 	if (qla82xx_rom_fast_read(ha, 0, &n) != 0 || n != 0xcafecafeUL ||
 	    qla82xx_rom_fast_read(ha, 4, &n) != 0) {
 		ql_log(ql_log_fatal, vha, 0x006e,