On 4/15/20 3:48 PM, Mathieu Poirier wrote:
> Make the firmware name allocation a function on its own in an
> effort to cleanup function rproc_alloc().
>
> Signed-off-by: Mathieu Poirier <mathieu.poirier@xxxxxxxxxx>
Looks good.
Reviewed-by: Alex Elder <elder@xxxxxxxxxx>
> ---
> drivers/remoteproc/remoteproc_core.c | 66 ++++++++++++++++------------
> 1 file changed, 39 insertions(+), 27 deletions(-)
>
> diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c
> index 80056513ae71..4dee63f319ba 100644
> --- a/drivers/remoteproc/remoteproc_core.c
> +++ b/drivers/remoteproc/remoteproc_core.c
> @@ -1979,6 +1979,33 @@ static const struct device_type rproc_type = {
> .release = rproc_type_release,
> };
>
> +static int rproc_alloc_firmware(struct rproc *rproc,
> + const char *name, const char *firmware)
> +{
> + char *p, *template = "rproc-%s-fw";
> + int name_len;
> +
> + if (!firmware) {
> + /*
> + * If the caller didn't pass in a firmware name then
> + * construct a default name.
> + */
> + name_len = strlen(name) + strlen(template) - 2 + 1;
> + p = kmalloc(name_len, GFP_KERNEL);
> + if (!p)
> + return -ENOMEM;
> + snprintf(p, name_len, template, name);
> + } else {
> + p = kstrdup(firmware, GFP_KERNEL);
> + if (!p)
> + return -ENOMEM;
> + }
> +
> + rproc->firmware = p;
> +
> + return 0;
> +}
> +
> /**
> * rproc_alloc() - allocate a remote processor handle
> * @dev: the underlying device
> @@ -2007,42 +2034,21 @@ struct rproc *rproc_alloc(struct device *dev, const char *name,
> const char *firmware, int len)
> {
> struct rproc *rproc;
> - char *p, *template = "rproc-%s-fw";
> - int name_len;
>
> if (!dev || !name || !ops)
> return NULL;
>
> - if (!firmware) {
> - /*
> - * If the caller didn't pass in a firmware name then
> - * construct a default name.
> - */
> - name_len = strlen(name) + strlen(template) - 2 + 1;
> - p = kmalloc(name_len, GFP_KERNEL);
> - if (!p)
> - return NULL;
> - snprintf(p, name_len, template, name);
> - } else {
> - p = kstrdup(firmware, GFP_KERNEL);
> - if (!p)
> - return NULL;
> - }
> -
> rproc = kzalloc(sizeof(struct rproc) + len, GFP_KERNEL);
> - if (!rproc) {
> - kfree(p);
> + if (!rproc)
> return NULL;
> - }
> +
> + if (rproc_alloc_firmware(rproc, name, firmware))
> + goto free_rproc;
>
> rproc->ops = kmemdup(ops, sizeof(*ops), GFP_KERNEL);
> - if (!rproc->ops) {
> - kfree(p);
> - kfree(rproc);
> - return NULL;
> - }
> + if (!rproc->ops)
> + goto free_firmware;
>
> - rproc->firmware = p;
> rproc->name = name;
> rproc->priv = &rproc[1];
> rproc->auto_boot = true;
> @@ -2091,6 +2097,12 @@ struct rproc *rproc_alloc(struct device *dev, const char *name,
> rproc->state = RPROC_OFFLINE;
>
> return rproc;
> +
> +free_firmware:
> + kfree(rproc->firmware);
> +free_rproc:
> + kfree(rproc);
> + return NULL;
> }
> EXPORT_SYMBOL(rproc_alloc);
>
>
