From: Zhang Qilong <zhangqilong3@huawei.com>
Date: Tue, 27 Oct 2020 13:49:01 +0000 (+0800)
Subject: ACPI: NFIT: Fix comparison to '-ENXIO'
X-Git-Tag: v4.19.156~18
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=a52cdf61125b2189a8e1d85d1e61d654f7fe5d4d;p=users%2Fdwmw2%2Flinux.git

ACPI: NFIT: Fix comparison to '-ENXIO'

[ Upstream commit 85f971b65a692b68181438e099b946cc06ed499b ]

Initial value of rc is '-ENXIO', and we should
use the initial value to check it.

Signed-off-by: Zhang Qilong <zhangqilong3@huawei.com>
Reviewed-by: Pankaj Gupta <pankaj.gupta.linux@gmail.com>
Reviewed-by: Vishal Verma <vishal.l.verma@intel.com>
[ rjw: Subject edit ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c
index dd4c7289610ec..cb88f3b43a940 100644
--- a/drivers/acpi/nfit/core.c
+++ b/drivers/acpi/nfit/core.c
@@ -1535,7 +1535,7 @@ static ssize_t format1_show(struct device *dev,
 					le16_to_cpu(nfit_dcr->dcr->code));
 			break;
 		}
-		if (rc != ENXIO)
+		if (rc != -ENXIO)
 			break;
 	}
 	mutex_unlock(&acpi_desc->init_mutex);