[PATCH net-next v1 11/21] net: usb: lan78xx: Add error handling to lan78xx_setup_irq_domain
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From: Oleksij Rempel <o.rempel@pengutronix.de>
Date: 2024-12-03 07:22:10
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Subsystem:
networking drivers, the rest, usb lan78xx ethernet driver, usb networking drivers · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds, Thangaraj Samynathan
Revision v1 of 2 in this series.
Revisions (2)
- v1 current
- v1
Update `lan78xx_setup_irq_domain` to handle errors in `lan78xx_read_reg`. Return the error code immediately if the read operation fails, ensuring proper error propagation during IRQ domain setup. Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> --- drivers/net/usb/lan78xx.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c
index d5f6367d3714..070b21baffaf 100644
--- a/drivers/net/usb/lan78xx.c
+++ b/drivers/net/usb/lan78xx.c@@ -2445,7 +2445,10 @@ static int lan78xx_setup_irq_domain(struct lan78xx_net *dev) mutex_init(&dev->domain_data.irq_lock); - lan78xx_read_reg(dev, INT_EP_CTL, &buf); + ret = lan78xx_read_reg(dev, INT_EP_CTL, &buf); + if (ret < 0) + return ret; + dev->domain_data.irqenable = buf; dev->domain_data.irqchip = &lan78xx_irqchip;
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2.39.5