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From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: dmaengine <dmaengine@vger.kernel.org>,
	"Rafael J . Wysocki" <rjw@rjwysocki.net>,
	linux-acpi@vger.kernel.org
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Sinan Kaya <okaya@codeaurora.org>,
	Sakari Ailus <sakari.ailus@linux.intel.com>,
	Vinod Koul <vinod.koul@intel.com>
Subject: [v2,3/6] ACPI / bus: Remove checks in acpi_get_match_data()
Date: Thu,  1 Feb 2018 22:20:09 +0200	[thread overview]
Message-ID: <20180201202012.36524-3-andriy.shevchenko@linux.intel.com> (raw)

As well as its sibling of_device_get_match_data() has no such checks,
no need to do it in acpi_get_match_data().

First of all, we are not supposed to call fwnode API like this without
driver attached.

Second, since __acpi_match_device() does check input parameter there is
no need to duplicate it outside.

Fixes: 80212a162329 ("ACPI / bus: Introduce acpi_get_match_data() function")
Cc: Sinan Kaya <okaya@codeaurora.org>
Cc: Sakari Ailus <sakari.ailus@linux.intel.com>
Cc: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
v2: rebase on top of new patches, rephrase commit message
 drivers/acpi/bus.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index f3a7c29e9190..413e4b1cb1be 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -791,12 +791,6 @@ void *acpi_get_match_data(const struct device *dev)
 {
 	const struct acpi_device_id *match;
 
-	if (!dev->driver)
-		return NULL;
-
-	if (!dev->driver->acpi_match_table)
-		return NULL;
-
 	match = acpi_match_device(dev->driver->acpi_match_table, dev);
 	if (!match)
 		return NULL;

             reply	other threads:[~2018-02-01 20:20 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-02-01 20:20 Andy Shevchenko [this message]
  -- strict thread matches above, loose matches on Subject: below --
2018-02-01 20:46 [v2,3/6] ACPI / bus: Remove checks in acpi_get_match_data() Andy Shevchenko
2018-02-04  7:21 Rafael J. Wysocki
2018-02-05 16:04 Andy Shevchenko
2018-02-05 16:54 Rafael J. Wysocki
2018-02-06 12:51 Andy Shevchenko

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