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| author | abdoulaye berthe <berthe.ab@gmail.com> | 2014-05-13 18:42:12 +0200 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2014-05-16 17:52:37 +0200 |
| commit | ae28193e01c8467f448e77234a074bae05b7a66f (patch) | |
| tree | 914d38f42061a36176ffc577a631f9d589a3a0fe /drivers/gpio | |
| parent | 0ed3398ed8086597ff53d119fa48fa466f2f2754 (diff) | |
| download | linux-ae28193e01c8467f448e77234a074bae05b7a66f.tar.gz linux-ae28193e01c8467f448e77234a074bae05b7a66f.tar.bz2 linux-ae28193e01c8467f448e77234a074bae05b7a66f.zip | |
gpio: janzttl: use devm function
This uses dem function for mem allocation
Signed-off-by: abdoulaye berthe <berthe.ab@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/gpio')
| -rw-r--r-- | drivers/gpio/gpio-janz-ttl.c | 37 |
1 files changed, 8 insertions, 29 deletions
diff --git a/drivers/gpio/gpio-janz-ttl.c b/drivers/gpio/gpio-janz-ttl.c index 255806bcbfe5..42852eaaf020 100644 --- a/drivers/gpio/gpio-janz-ttl.c +++ b/drivers/gpio/gpio-janz-ttl.c @@ -152,33 +152,21 @@ static int ttl_probe(struct platform_device *pdev) pdata = dev_get_platdata(&pdev->dev); if (!pdata) { dev_err(dev, "no platform data\n"); - ret = -ENXIO; - goto out_return; + return -ENXIO; } - mod = kzalloc(sizeof(*mod), GFP_KERNEL); - if (!mod) { - ret = -ENOMEM; - goto out_return; - } + mod = devm_kzalloc(dev, sizeof(*mod), GFP_KERNEL); + if (!mod) + return -ENOMEM; platform_set_drvdata(pdev, mod); spin_lock_init(&mod->lock); /* get access to the MODULbus registers for this module */ res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) { - dev_err(dev, "MODULbus registers not found\n"); - ret = -ENODEV; - goto out_free_mod; - } - - mod->regs = ioremap(res->start, resource_size(res)); - if (!mod->regs) { - dev_err(dev, "MODULbus registers not ioremap\n"); - ret = -ENOMEM; - goto out_free_mod; - } + mod->regs = devm_ioremap_resource(dev, res); + if (IS_ERR(mod->regs)) + return PTR_ERR(mod->regs); ttl_setup_device(mod); @@ -197,17 +185,10 @@ static int ttl_probe(struct platform_device *pdev) ret = gpiochip_add(gpio); if (ret) { dev_err(dev, "unable to add GPIO chip\n"); - goto out_iounmap_regs; + return ret; } return 0; - -out_iounmap_regs: - iounmap(mod->regs); -out_free_mod: - kfree(mod); -out_return: - return ret; } static int ttl_remove(struct platform_device *pdev) @@ -222,8 +203,6 @@ static int ttl_remove(struct platform_device *pdev) return ret; } - iounmap(mod->regs); - kfree(mod); return 0; } |