From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: Thu, 16 Jul 2020 11:57:37 -0600
Subject: coresight: Drop double check for ACPI companion device
Git-commit: e82d785eba4a2b047a71d7d6c5ee671237bfe716
Patch-mainline: v5.9-rc1
References: jsc#SLE-13629,jsc#SLE-14776
acpi_dev_get_resources() does perform the NULL pointer check against
ACPI companion device which is given as function parameter. Thus,
there is no need to duplicate this check in the caller.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20200716175746.3338735-9-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@suse.com>
---
drivers/hwtracing/coresight/coresight-stm.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/drivers/hwtracing/coresight/coresight-stm.c b/drivers/hwtracing/coresight/coresight-stm.c
index b908ca104645..673d2f56ed1e 100644
--- a/drivers/hwtracing/coresight/coresight-stm.c
+++ b/drivers/hwtracing/coresight/coresight-stm.c
@@ -727,8 +727,6 @@ static int acpi_stm_get_stimulus_area(struct device *dev, struct resource *res)
struct acpi_device *adev = ACPI_COMPANION(dev);
- if (!adev)
- return -ENODEV;
rc = acpi_dev_get_resources(adev, &res_list, NULL, NULL);
if (rc < 0)
return rc;
--
2.26.2