lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:	Wed, 22 Oct 2014 16:30:59 +0200
From:	Frans Klaver <frans.klaver@...ns.com>
To:	Sebastian Reichel <sre@...nel.org>
CC:	Frans Klaver <frans.klaver@...ns.com>,
	Dmitry Eremin-Solenikov <dbaryshkov@...il.com>,
	David Woodhouse <dwmw2@...radead.org>,
	Grant Likely <grant.likely@...aro.org>,
	Rob Herring <robh+dt@...nel.org>,
	Mark Rutland <mark.rutland@....com>,
	René Moll <linux@...oll.nl>,
	Guenter Roeck <linux@...ck-us.net>,
	<linux-kernel@...r.kernel.org>, <linux-pm@...r.kernel.org>,
	<devicetree@...r.kernel.org>
Subject: [PATCH 02/13] power: reset: ltc2952: prefer devm_request_irq over request_irq

Make use of the fact that we allocated resources can be automatically
deallocated. This reduces cleanup code and chance of errors. It also
removes the need for the virq member of the ltc2952_poweroff_data
struct.

Signed-off-by: Frans Klaver <frans.klaver@...ns.com>
---
 drivers/power/reset/ltc2952-poweroff.c | 19 ++++++-------------
 1 file changed, 6 insertions(+), 13 deletions(-)

diff --git a/drivers/power/reset/ltc2952-poweroff.c b/drivers/power/reset/ltc2952-poweroff.c
index 951a90d..2c11316 100644
--- a/drivers/power/reset/ltc2952-poweroff.c
+++ b/drivers/power/reset/ltc2952-poweroff.c
@@ -72,8 +72,6 @@ struct ltc2952_poweroff_data {
 
 	struct device *dev;
 
-	unsigned int virq;
-
 	/**
 	 * 0: trigger
 	 * 1: watchdog
@@ -260,13 +258,11 @@ static int ltc2952_poweroff_init(struct platform_device *pdev)
 		goto err_io;
 	}
 
-	ltc2952_data->virq = virq;
-	ret = request_irq(virq,
-		ltc2952_poweroff_handler,
-		(IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING),
-		"ltc2952-poweroff",
-		ltc2952_data
-	);
+	ret = devm_request_irq(&pdev->dev, virq,
+			       ltc2952_poweroff_handler,
+			       (IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING),
+			       "ltc2952-poweroff",
+			       ltc2952_data);
 
 	if (ret) {
 		dev_err(&pdev->dev, "cannot configure an interrupt handler\n");
@@ -316,12 +312,9 @@ static int ltc2952_poweroff_remove(struct platform_device *pdev)
 
 	pm_power_off = NULL;
 
-	if (ltc2952_data) {
-		free_irq(ltc2952_data->virq, ltc2952_data);
-
+	if (ltc2952_data)
 		for (i = 0; i < ARRAY_SIZE(ltc2952_data->gpio); i++)
 			gpiod_put(ltc2952_data->gpio[i]);
-	}
 
 	return 0;
 }
-- 
2.1.0

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Powered by blists - more mailing lists