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author | Julia Lawall <Julia.Lawall@lip6.fr> | 2013-08-14 11:11:07 +0200 |
---|---|---|
committer | Linus Walleij <linus.walleij@linaro.org> | 2013-08-16 17:16:31 +0200 |
commit | 08a67a58af3c361ae3e8d6fcf23a1489213309a9 (patch) | |
tree | 136b76ddd11fc9d42d0424600ee9a3884209213e /drivers/gpio/gpio-mvebu.c | |
parent | 388f4308412574268d38010d877575f8caebad79 (diff) | |
download | linux-08a67a58af3c361ae3e8d6fcf23a1489213309a9.tar.gz linux-08a67a58af3c361ae3e8d6fcf23a1489213309a9.tar.bz2 linux-08a67a58af3c361ae3e8d6fcf23a1489213309a9.zip |
drivers/gpio: simplify use of devm_ioremap_resource
Remove unneeded error handling on the result of a call to
platform_get_resource when the value is passed to devm_ioremap_resource.
Move the call to platform_get_resource adjacent to the call to
devm_ioremap_resource to make the connection between them more clear.
A simplified version of the semantic patch that makes this change is as
follows: (http://coccinelle.lip6.fr/)
// <smpl>
@@
expression pdev,res,n,e,e1;
expression ret != 0;
identifier l;
@@
- res = platform_get_resource(pdev, IORESOURCE_MEM, n);
... when != res
- if (res == NULL) { ... \(goto l;\|return ret;\) }
... when != res
+ res = platform_get_resource(pdev, IORESOURCE_MEM, n);
e = devm_ioremap_resource(e1, res);
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/gpio/gpio-mvebu.c')
-rw-r--r-- | drivers/gpio/gpio-mvebu.c | 7 |
1 files changed, 1 insertions, 6 deletions
diff --git a/drivers/gpio/gpio-mvebu.c b/drivers/gpio/gpio-mvebu.c index 80ad35e2a8cd..3c3321f94053 100644 --- a/drivers/gpio/gpio-mvebu.c +++ b/drivers/gpio/gpio-mvebu.c @@ -566,12 +566,6 @@ static int mvebu_gpio_probe(struct platform_device *pdev) else soc_variant = MVEBU_GPIO_SOC_VARIANT_ORION; - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) { - dev_err(&pdev->dev, "Cannot get memory resource\n"); - return -ENODEV; - } - mvchip = devm_kzalloc(&pdev->dev, sizeof(struct mvebu_gpio_chip), GFP_KERNEL); if (!mvchip) { dev_err(&pdev->dev, "Cannot allocate memory\n"); @@ -611,6 +605,7 @@ static int mvebu_gpio_probe(struct platform_device *pdev) mvchip->chip.dbg_show = mvebu_gpio_dbg_show; spin_lock_init(&mvchip->lock); + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); mvchip->membase = devm_ioremap_resource(&pdev->dev, res); if (IS_ERR(mvchip->membase)) return PTR_ERR(mvchip->membase); |