Re: [PATCH-v3 06/11] i2c:pxa: Use devm_ variants in probe function

From: Wolfram Sang
Date: Fri Jul 10 2015 - 04:18:24 EST


> - i2c = kzalloc(sizeof(struct pxa_i2c), GFP_KERNEL);
> + i2c = devm_kzalloc(&dev->dev, sizeof(struct pxa_i2c), GFP_KERNEL);
> if (!i2c) {
> - ret = -ENOMEM;
> - goto emalloc;
> + dev_err(&dev->dev, "memory allocation failed\n");

No message here, we get a dump anyhow.

> + res = platform_get_resource(dev, IORESOURCE_MEM, 0);
> + if (!res) {
> + dev_err(&dev->dev, "no mem resource\n");
> + return -ENODEV;
> + }

You can skip this check, devm_ioremap_resource will do it.

> + dev_err(&dev->dev, "failed to get the clk: %ld\n",
> + PTR_ERR(i2c->clk));

Sidenote for all patches: I am not so strict with the 80 char limit. I'd
think the above code would be more readable if it was one line. But you
decide.

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