linux-kernel - [PATCH -next] ipack: tpci200: fix error return code in tpci200

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Message-ID: <20200507094237.13599-1-weiyongjun1@huawei.com>
Date:   Thu, 7 May 2020 09:42:37 +0000
From:   Wei Yongjun <weiyongjun1@...wei.com>
To:     Samuel Iglesias Gonsalvez <siglesias@...lia.com>,
        Jens Taprogge <jens.taprogge@...rogge.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Zhouyang Jia <jiazhouyang09@...il.com>,
        "Kees Cook" <keescook@...omium.org>
CC:     Wei Yongjun <weiyongjun1@...wei.com>,
        <industrypack-devel@...ts.sourceforge.net>,
        <linux-kernel@...r.kernel.org>, <kernel-janitors@...r.kernel.org>,
        Hulk Robot <hulkci@...wei.com>
Subject: [PATCH -next] ipack: tpci200: fix error return code in tpci200_register()

Fix to return negative error code -ENOMEM from the ioremap() error handling
case instead of 0, as done elsewhere in this function.

Fixes: 43986798fd50 ("ipack: add error handling for ioremap_nocache")
Reported-by: Hulk Robot <hulkci@...wei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@...wei.com>
---
 drivers/ipack/carriers/tpci200.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/ipack/carriers/tpci200.c b/drivers/ipack/carriers/tpci200.c
index 8a9c169..b5eec18 100644
--- a/drivers/ipack/carriers/tpci200.c
+++ b/drivers/ipack/carriers/tpci200.c
@@ -309,6 +309,7 @@ static int tpci200_register(struct tpci200_board *tpci200)
 			"(bn 0x%X, sn 0x%X) failed to map driver user space!",
 			tpci200->info->pdev->bus->number,
 			tpci200->info->pdev->devfn);
+		res = -ENOMEM;
 		goto out_release_mem8_space;
 	}