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 68205002f561e8bcb4e6b3eba955514ea7ed2e63..20fd197ef74ccad642ad49a506ab91b635458be6 100644 (file)
--- a/drivers/acpi/nfit/core.c
+++ b/drivers/acpi/nfit/core.c
@@ -1273,7 +1273,7 @@ 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);