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bcmgenet: add WOL IRQ check 

commit 9deb48b53e upstream.

The driver neglects to check the result of platform_get_irq_optional()'s
call and blithely passes the negative error codes to devm_request_irq()
(which takes *unsigned* IRQ #), causing it to fail with -EINVAL.
Stop calling devm_request_irq() with the invalid IRQ #s.

Fixes: 8562056f26 ("net: bcmgenet: request Wake-on-LAN interrupt")
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Sergey Shtylyov 2022-01-13 22:46:07 +03:00 committed by Greg Kroah-Hartman
parent af7c14aa08
commit c87126e491
1 changed files with 6 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/net/ethernet/broadcom/genet/bcmgenet.c
View File

@ -3519,10 +3519,12 @@ static int bcmgenet_probe(struct platform_device *pdev)
/* Request the WOL interrupt and advertise suspend if available */
priv->wol_irq_disabled = true;
err = devm_request_irq(&pdev->dev, priv->wol_irq, bcmgenet_wol_isr, 0,
dev->name, priv);
if (!err)
device_set_wakeup_capable(&pdev->dev, 1);
if (priv->wol_irq > 0) {
err = devm_request_irq(&pdev->dev, priv->wol_irq,
bcmgenet_wol_isr, 0, dev->name, priv);
if (!err)
device_set_wakeup_capable(&pdev->dev, 1);
}
/* Set the needed headroom to account for any possible
* features enabling/disabling at runtime