Hi Alexandre,
On Friday 28 April 2017 09:34 PM, Alexandre Bailon wrote:
> If dma_request_slave_channel() failed to return a channel,
> then the driver will print an error and request to defer probe.
> Update the error message to explain we are defrering probe.
>
> Signed-off-by: Alexandre Bailon <abailon@xxxxxxxxxxxx>
> ---
> drivers/usb/musb/musb_cppi41.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/usb/musb/musb_cppi41.c b/drivers/usb/musb/musb_cppi41.c
> index e7c8b1b..e6b9161 100644
> --- a/drivers/usb/musb/musb_cppi41.c
> +++ b/drivers/usb/musb/musb_cppi41.c
> @@ -676,6 +676,7 @@ static int cppi41_dma_controller_start(struct cppi41_dma_controller *controller)
> dc = dma_request_slave_channel(dev->parent, str);
> if (!dc) {
> dev_err(dev, "Failed to request %s.\n", str);
> + dev_info(dev, "Deferring probe.\n");
> ret = -EPROBE_DEFER;
> goto err;
> }
It looks like you will be better-off using dma_request_chan() instead so
you can get an error pointer back and not return -EPROBE_DEFER
irrespective of the actual error.
Thanks,
Sekhar
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