linux-kernel - [PATCH 4.19 278/338] scsi: aha152x: Fix aha152x_setup() _

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Message-Id: <20220414110846.799916094@linuxfoundation.org>
Date:   Thu, 14 Apr 2022 15:13:01 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, "Juergen E. Fischer" <fischer@...bit.de>,
        "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        Igor Zhbanov <i.zhbanov@...russia.ru>,
        Randy Dunlap <rdunlap@...radead.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.19 278/338] scsi: aha152x: Fix aha152x_setup() __setup handler return value

From: Randy Dunlap <rdunlap@...radead.org>

[ Upstream commit cc8294ec4738d25e2bb2d71f7d82a9bf7f4a157b ]

__setup() handlers should return 1 if the command line option is handled
and 0 if not (or maybe never return 0; doing so just pollutes init's
environment with strings that are not init arguments/parameters).

Return 1 from aha152x_setup() to indicate that the boot option has been
handled.

Link: lore.kernel.org/r/64644a2f-4a20-bab3-1e15-3b2cdd0defe3@...russia.ru
Link: https://lore.kernel.org/r/20220223000623.5920-1-rdunlap@infradead.org
Cc: "Juergen E. Fischer" <fischer@...bit.de>
Cc: "James E.J. Bottomley" <jejb@...ux.ibm.com>
Cc: "Martin K. Petersen" <martin.petersen@...cle.com>
Reported-by: Igor Zhbanov <i.zhbanov@...russia.ru>
Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
Signed-off-by: Martin K. Petersen <martin.petersen@...cle.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/scsi/aha152x.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/aha152x.c b/drivers/scsi/aha152x.c
index 4d7b0e0adbf7..2690098d4411 100644
--- a/drivers/scsi/aha152x.c
+++ b/drivers/scsi/aha152x.c
@@ -3379,13 +3379,11 @@ static int __init aha152x_setup(char *str)
 	setup[setup_count].synchronous = ints[0] >= 6 ? ints[6] : 1;
 	setup[setup_count].delay       = ints[0] >= 7 ? ints[7] : DELAY_DEFAULT;
 	setup[setup_count].ext_trans   = ints[0] >= 8 ? ints[8] : 0;
-	if (ints[0] > 8) {                                                /*}*/
+	if (ints[0] > 8)
 		printk(KERN_NOTICE "aha152x: usage: aha152x=<IOBASE>[,<IRQ>[,<SCSI ID>"
 		       "[,<RECONNECT>[,<PARITY>[,<SYNCHRONOUS>[,<DELAY>[,<EXT_TRANS>]]]]]]]\n");
-	} else {
+	else
 		setup_count++;
-		return 0;
-	}
 
 	return 1;
 }
-- 
2.35.1