On Tue, May 08, 2018 at 11:44:57AM +0200, Christian Gromm wrote:
> This patch prevents the driver from falling back to polling mode
> in case of IRQ misconfiguration.
>
> Signed-off-by: Christian Gromm <christian.gr...@microchip.com>
> ---
> drivers/staging/most/i2c/i2c.c | 18 ++++++++++--------
> 1 file changed, 10 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/staging/most/i2c/i2c.c b/drivers/staging/most/i2c/i2c.c
> index a993e8e..e03cb6c 100644
> --- a/drivers/staging/most/i2c/i2c.c
> +++ b/drivers/staging/most/i2c/i2c.c
> @@ -90,22 +90,24 @@ static int configure_channel(struct most_interface
> *most_iface,
> }
>
> if (channel_config->direction == MOST_CH_RX) {
> - dev->polling_mode = polling_req || dev->client->irq <= 0;
> + dev->polling_mode = polling_req;
> if (!dev->polling_mode) {
> - pr_info("Requesting IRQ: %d\n", dev->client->irq);
> + if (dev->client->irq <= 0) {
> + pr_err("bad irq: %d\n", dev->client->irq);
> + return -ENOENT;
> + }
I was wondering about this at the time... It would have been better to
fold this in with the earlier patch and it's pretty easy to fold patches
together with `git rebase -i`.
regards,
dan carpenter
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