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SubjectRe: [PATCH v5 04/15] soundwire: Add MIPI DisCo property helpers
On Wed, 06 Dec 2017 16:47:00 +0100,
Vinod Koul wrote:
>
> +static int sdw_slave_read_dpn(struct sdw_slave *slave,
> + struct sdw_dpn_prop *dpn, int count, int ports, char *type)
> +{
....
> + nval = fwnode_property_read_u32_array(node,
> + "mipi-sdw-port-wordlength-configs", NULL, 0);
> + if (nval > 0)
> + dpn[i].num_words = nval;
> +
> + if (dpn[i].num_words) {
> + dpn[i].words = devm_kcalloc(&slave->dev, nval,
> + sizeof(*dpn[i].words), GFP_KERNEL);

Inconsistent checks here: nval or dpn[i].num_words.


> + nval = fwnode_property_read_u32_array(node,
> + "mipi-sdw-channel-number-list", NULL, 0);
> + if (nval > 0)
> + dpn[i].num_ch = nval;
> +
> + if (dpn[i].num_ch) {
> + dpn[i].ch = devm_kcalloc(&slave->dev, nval,
> + sizeof(*dpn[i].ch), GFP_KERNEL);

Ditto.


> + nval = fwnode_property_read_u32_array(node,
> + "mipi-sdw-channel-combination-list", NULL, 0);
> + if (nval > 0)
> + dpn[i].num_ch_combinations = nval;
> +
> + if (dpn[i].num_ch_combinations) {
> + dpn[i].ch_combinations = devm_kcalloc(&slave->dev,
> + nval, sizeof(*dpn[i].ch_combinations),
> + GFP_KERNEL);

Ditto.

> + /* TODO: Read audio mode */
> +
> + i++;
> + }

Don't we use count argument for a sanity check?


Takashi

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