From: Corentin Labbe <clabbe.montjoie@gmail.com> To: wim@iguana.be, linux@roeck-us.net, maxime.ripard@free-electrons.com, wens@csie.org Cc: linux-watchdog@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Corentin Labbe <clabbe.montjoie@gmail.com> Subject: [PATCH] watchdog: sunxi_wdt: use of_device_get_match_data Date: Sat, 21 Oct 2017 19:45:13 +0200 [thread overview] Message-ID: <20171021174513.1653-1-clabbe.montjoie@gmail.com> (raw) The usage of of_device_get_match_data reduce the code size a bit. Furthermore, it prevents an improbable dereference when of_match_device() return NULL. Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com> --- drivers/watchdog/sunxi_wdt.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/drivers/watchdog/sunxi_wdt.c b/drivers/watchdog/sunxi_wdt.c index 9728fa32c357..802e31b1416d 100644 --- a/drivers/watchdog/sunxi_wdt.c +++ b/drivers/watchdog/sunxi_wdt.c @@ -234,7 +234,6 @@ MODULE_DEVICE_TABLE(of, sunxi_wdt_dt_ids); static int sunxi_wdt_probe(struct platform_device *pdev) { struct sunxi_wdt_dev *sunxi_wdt; - const struct of_device_id *device; struct resource *res; int err; @@ -242,12 +241,10 @@ static int sunxi_wdt_probe(struct platform_device *pdev) if (!sunxi_wdt) return -EINVAL; - device = of_match_device(sunxi_wdt_dt_ids, &pdev->dev); - if (!device) + sunxi_wdt->wdt_regs = of_device_get_match_data(&pdev->dev); + if (!sunxi_wdt->wdt_regs) return -ENODEV; - sunxi_wdt->wdt_regs = device->data; - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); sunxi_wdt->wdt_base = devm_ioremap_resource(&pdev->dev, res); if (IS_ERR(sunxi_wdt->wdt_base)) -- 2.13.6
WARNING: multiple messages have this Message-ID (diff)
From: clabbe.montjoie@gmail.com (Corentin Labbe) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH] watchdog: sunxi_wdt: use of_device_get_match_data Date: Sat, 21 Oct 2017 19:45:13 +0200 [thread overview] Message-ID: <20171021174513.1653-1-clabbe.montjoie@gmail.com> (raw) The usage of of_device_get_match_data reduce the code size a bit. Furthermore, it prevents an improbable dereference when of_match_device() return NULL. Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com> --- drivers/watchdog/sunxi_wdt.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/drivers/watchdog/sunxi_wdt.c b/drivers/watchdog/sunxi_wdt.c index 9728fa32c357..802e31b1416d 100644 --- a/drivers/watchdog/sunxi_wdt.c +++ b/drivers/watchdog/sunxi_wdt.c @@ -234,7 +234,6 @@ MODULE_DEVICE_TABLE(of, sunxi_wdt_dt_ids); static int sunxi_wdt_probe(struct platform_device *pdev) { struct sunxi_wdt_dev *sunxi_wdt; - const struct of_device_id *device; struct resource *res; int err; @@ -242,12 +241,10 @@ static int sunxi_wdt_probe(struct platform_device *pdev) if (!sunxi_wdt) return -EINVAL; - device = of_match_device(sunxi_wdt_dt_ids, &pdev->dev); - if (!device) + sunxi_wdt->wdt_regs = of_device_get_match_data(&pdev->dev); + if (!sunxi_wdt->wdt_regs) return -ENODEV; - sunxi_wdt->wdt_regs = device->data; - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); sunxi_wdt->wdt_base = devm_ioremap_resource(&pdev->dev, res); if (IS_ERR(sunxi_wdt->wdt_base)) -- 2.13.6
next reply other threads:[~2017-10-21 17:47 UTC|newest] Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top 2017-10-21 17:45 Corentin Labbe [this message] 2017-10-21 17:45 ` [PATCH] watchdog: sunxi_wdt: use of_device_get_match_data Corentin Labbe 2017-10-22 17:44 ` Guenter Roeck 2017-10-22 17:44 ` Guenter Roeck
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