[PATCH v2 01/12] mmc: bcm2835: fix deferred probing

[Stefan Wahren]

Hi Sergey,

was there a cover for this series, since the RFC series before had one?

Am 08.06.23 um 21:45 schrieb Sergey Shtylyov:
> The driver overrides the error codes and IRQ0 returned by platform_get_irq()
> to -EINVAL, so if it returns -EPROBE_DEFER, the driver will fail the probe
> permanently instead of the deferred probing. Switch to propagating the error
> codes upstream.  IRQ0 is no longer returned by platform_get_irq(), so we now
> can safely ignore it...
> 
> Fixes: 660fc733bd74 ("mmc: bcm2835: Add new driver for the sdhost controller.")

I know this is very theoretical, but does the statement "IRQ0 is no 
longer returned by platform_get_irq()" also applies to the time of the 
fixes commit?

I'm asking because the fix could be backported to Linux 4.14.

Best regards

> Signed-off-by: Sergey Shtylyov <s.shtylyov at omp.ru>
> ---
> Changes in version 2:
> - refreshed the patch;
> - slightly reformatted the patch description.
> 
>   drivers/mmc/host/bcm2835.c | 4 ++--
>   1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/mmc/host/bcm2835.c b/drivers/mmc/host/bcm2835.c
> index 8648f7e63ca1..eea208856ce0 100644
> --- a/drivers/mmc/host/bcm2835.c
> +++ b/drivers/mmc/host/bcm2835.c
> @@ -1403,8 +1403,8 @@ static int bcm2835_probe(struct platform_device *pdev)
>   	host->max_clk = clk_get_rate(clk);
>   
>   	host->irq = platform_get_irq(pdev, 0);
> -	if (host->irq <= 0) {
> -		ret = -EINVAL;
> +	if (host->irq < 0) {
> +		ret = host->irq;
>   		goto err;
>   	}
>