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From: Bard Liao <yung-chuan.liao@linux.intel.com>
To: alsa-devel@alsa-project.org, vkoul@kernel.org
Cc: vinod.koul@linaro.org, linux-kernel@vger.kernel.org,
	gregkh@linuxfoundation.org, srinivas.kandagatla@linaro.org,
	pierre-louis.bossart@linux.intel.com, sanyog.r.kale@intel.com,
	bard.liao@intel.com
Subject: [PATCH] soundwire: bus_type: fix remove and shutdown support
Date: Fri, 10 Jun 2022 09:51:05 +0800	[thread overview]
Message-ID: <20220610015105.25987-1-yung-chuan.liao@linux.intel.com> (raw)

From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>

The bus sdw_drv_remove() and sdw_drv_shutdown() helpers are used
conditionally, if the driver provides these routines.

These helpers already test if the driver provides a .remove or
.shutdown callback, so there's no harm in invoking the
sdw_drv_remove() and sdw_drv_shutdown() unconditionally.

In addition, the current code is imbalanced with
dev_pm_domain_attach() called from sdw_drv_probe(), but
dev_pm_domain_detach() called from sdw_drv_remove() only if the driver
provides a .remove callback.

Fixes: 9251345dca24b ("soundwire: Add SoundWire bus type")
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
---
 drivers/soundwire/bus_type.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/drivers/soundwire/bus_type.c b/drivers/soundwire/bus_type.c
index 893296f3fe39..b81e04dd3a9f 100644
--- a/drivers/soundwire/bus_type.c
+++ b/drivers/soundwire/bus_type.c
@@ -193,12 +193,8 @@ int __sdw_register_driver(struct sdw_driver *drv, struct module *owner)
 
 	drv->driver.owner = owner;
 	drv->driver.probe = sdw_drv_probe;
-
-	if (drv->remove)
-		drv->driver.remove = sdw_drv_remove;
-
-	if (drv->shutdown)
-		drv->driver.shutdown = sdw_drv_shutdown;
+	drv->driver.remove = sdw_drv_remove;
+	drv->driver.shutdown = sdw_drv_shutdown;
 
 	return driver_register(&drv->driver);
 }
-- 
2.17.1


WARNING: multiple messages have this Message-ID (diff)
From: Bard Liao <yung-chuan.liao@linux.intel.com>
To: alsa-devel@alsa-project.org, vkoul@kernel.org
Cc: vinod.koul@linaro.org, gregkh@linuxfoundation.org,
	pierre-louis.bossart@linux.intel.com,
	linux-kernel@vger.kernel.org, srinivas.kandagatla@linaro.org,
	sanyog.r.kale@intel.com, bard.liao@intel.com
Subject: [PATCH] soundwire: bus_type: fix remove and shutdown support
Date: Fri, 10 Jun 2022 09:51:05 +0800	[thread overview]
Message-ID: <20220610015105.25987-1-yung-chuan.liao@linux.intel.com> (raw)

From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>

The bus sdw_drv_remove() and sdw_drv_shutdown() helpers are used
conditionally, if the driver provides these routines.

These helpers already test if the driver provides a .remove or
.shutdown callback, so there's no harm in invoking the
sdw_drv_remove() and sdw_drv_shutdown() unconditionally.

In addition, the current code is imbalanced with
dev_pm_domain_attach() called from sdw_drv_probe(), but
dev_pm_domain_detach() called from sdw_drv_remove() only if the driver
provides a .remove callback.

Fixes: 9251345dca24b ("soundwire: Add SoundWire bus type")
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
---
 drivers/soundwire/bus_type.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/drivers/soundwire/bus_type.c b/drivers/soundwire/bus_type.c
index 893296f3fe39..b81e04dd3a9f 100644
--- a/drivers/soundwire/bus_type.c
+++ b/drivers/soundwire/bus_type.c
@@ -193,12 +193,8 @@ int __sdw_register_driver(struct sdw_driver *drv, struct module *owner)
 
 	drv->driver.owner = owner;
 	drv->driver.probe = sdw_drv_probe;
-
-	if (drv->remove)
-		drv->driver.remove = sdw_drv_remove;
-
-	if (drv->shutdown)
-		drv->driver.shutdown = sdw_drv_shutdown;
+	drv->driver.remove = sdw_drv_remove;
+	drv->driver.shutdown = sdw_drv_shutdown;
 
 	return driver_register(&drv->driver);
 }
-- 
2.17.1


             reply	other threads:[~2022-06-10  1:51 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-06-10  1:51 Bard Liao [this message]
2022-06-10  1:51 ` [PATCH] soundwire: bus_type: fix remove and shutdown support Bard Liao
2022-06-23  7:55 ` Vinod Koul
2022-06-23  7:55   ` Vinod Koul
2022-06-23 14:54   ` Pierre-Louis Bossart
2022-06-23 14:54     ` Pierre-Louis Bossart
2022-07-04  5:43     ` Vinod Koul
2022-07-04  5:43       ` Vinod Koul
2022-07-04  6:20       ` Vinod Koul
2022-07-04  6:20         ` Vinod Koul

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