Source of leds-pca955x.c - linux-imx - PHYTEC BitBucket (Stash)

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    int count;
​
    count = of_get_child_count(np);
    if (!count || count > chip->bits)
        return ERR_PTR(-ENODEV);
​
    pdata = devm_kzalloc(&client->dev, sizeof(*pdata), GFP_KERNEL);
    if (!pdata)
        return ERR_PTR(-ENOMEM);
​
    pdata->leds = devm_kzalloc(&client->dev,
                   sizeof(struct pca955x_led) * chip->bits,
    pdata->leds = devm_kcalloc(&client->dev,
                   chip->bits, sizeof(struct pca955x_led),
                   GFP_KERNEL);
    if (!pdata->leds)
        return ERR_PTR(-ENOMEM);
​
    for_each_child_of_node(np, child) {
        const char *name;
        u32 reg;
        int res;
​
        res = of_property_read_u32(child, "reg", &reg);
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        dev_err(&client->dev,
            "board info claims %d LEDs on a %d-bit chip\n",
            pdata->num_leds, chip->bits);
        return -ENODEV;
    }
​
    pca955x = devm_kzalloc(&client->dev, sizeof(*pca955x), GFP_KERNEL);
    if (!pca955x)
        return -ENOMEM;
​
    pca955x->leds = devm_kzalloc(&client->dev,
            sizeof(*pca955x_led) * chip->bits, GFP_KERNEL);
    pca955x->leds = devm_kcalloc(&client->dev,
            chip->bits, sizeof(*pca955x_led), GFP_KERNEL);
    if (!pca955x->leds)
        return -ENOMEM;
​
    i2c_set_clientdata(client, pca955x);
​
    mutex_init(&pca955x->lock);
    pca955x->client = client;
    pca955x->chipdef = chip;
​
    for (i = 0; i < chip->bits; i++) {