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: v4.9.242~11
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=2da887bc7534077961ec5248ab36b3dbb1505278;p=platform%2Fkernel%2Flinux-amlogic.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 31a07609f7a2..b7fd8e00b346 100644
--- a/drivers/acpi/nfit/core.c
+++ b/drivers/acpi/nfit/core.c
@@ -1219,7 +1219,7 @@ 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);