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authorUwe Kleine-König <u.kleine-koenig@pengutronix.de>2021-06-21 18:12:44 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-06-24 16:49:32 +0300
commitae128916fb87a91ae41bec0461330e8a81500d84 (patch)
treefda93e54e2407f6e00b979aec1defd3ff2579285 /drivers/hwtracing
parentd0b371e5fba0ef2b4e3f6a3f1b5fe7f8bd97897e (diff)
downloadlinux-ae128916fb87a91ae41bec0461330e8a81500d84.tar.xz
intel_th: Remove an unused exit point from intel_th_remove()
As described in the added comment device_for_each_child() never returns a non-zero value. So remove the corresponding error check. This simplifies the quest to make struct bus_type::remove() return void. Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Link: https://lore.kernel.org/r/20210621151246.31891-3-alexander.shishkin@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/hwtracing')
-rw-r--r--drivers/hwtracing/intel_th/core.c12
1 files changed, 7 insertions, 5 deletions
diff --git a/drivers/hwtracing/intel_th/core.c b/drivers/hwtracing/intel_th/core.c
index 24d0c974bfd5..4bf025ef2031 100644
--- a/drivers/hwtracing/intel_th/core.c
+++ b/drivers/hwtracing/intel_th/core.c
@@ -100,16 +100,18 @@ static int intel_th_remove(struct device *dev)
struct intel_th_driver *thdrv = to_intel_th_driver(dev->driver);
struct intel_th_device *thdev = to_intel_th_device(dev);
struct intel_th_device *hub = to_intel_th_hub(thdev);
- int err;
if (thdev->type == INTEL_TH_SWITCH) {
struct intel_th *th = to_intel_th(hub);
int i, lowest;
- /* disconnect outputs */
- err = device_for_each_child(dev, thdev, intel_th_child_remove);
- if (err)
- return err;
+ /*
+ * disconnect outputs
+ *
+ * intel_th_child_remove returns 0 unconditionally, so there is
+ * no need to check the return value of device_for_each_child.
+ */
+ device_for_each_child(dev, thdev, intel_th_child_remove);
/*
* Remove outputs, that is, hub's children: they are created