[PATCH v2] net: usb: asix_devices: Check return value of usbnet_get_endpoints

[PATCH v2] net: usb: asix_devices: Check return value of usbnet_get_endpoints

[Miaoqian Lin]

The code did not check the return value of usbnet_get_endpoints.
Add checks and return the error if it fails to transfer the error.

Found via static anlaysis and this is similar to
commit 07161b2416f7 ("sr9800: Add check for usbnet_get_endpoints").

Fixes: 933a27d39e0e ("USB: asix - Add AX88178 support and many other changes")
Fixes: 2e55cc7210fe ("[PATCH] USB: usbnet (3/9) module for ASIX Ethernet adapters")
Cc: stable@vger.kernel.org
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
---
- v1:http://lore.kernel.org/all/20250830103743.2118777-1-linmq006@gmail.com
changes in v2:
- fix the blank line.
- update message to clarify how this is detected
- add Cc: stable
---
 drivers/net/usb/asix_devices.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/drivers/net/usb/asix_devices.c b/drivers/net/usb/asix_devices.c
index 85bd5d845409..232bbd79a4de 100644
--- a/drivers/net/usb/asix_devices.c
+++ b/drivers/net/usb/asix_devices.c
@@ -230,7 +230,9 @@ static int ax88172_bind(struct usbnet *dev, struct usb_interface *intf)
 	int i;
 	unsigned long gpio_bits = dev->driver_info->data;
 
-	usbnet_get_endpoints(dev,intf);
+	ret = usbnet_get_endpoints(dev, intf);
+	if (ret)
+		goto out;
 
 	/* Toggle the GPIOs in a manufacturer/model specific way */
 	for (i = 2; i >= 0; i--) {
@@ -848,7 +850,9 @@ static int ax88772_bind(struct usbnet *dev, struct usb_interface *intf)
 
 	dev->driver_priv = priv;
 
-	usbnet_get_endpoints(dev, intf);
+	ret = usbnet_get_endpoints(dev, intf);
+	if (ret)
+		return ret;
 
 	/* Maybe the boot loader passed the MAC address via device tree */
 	if (!eth_platform_get_mac_address(&dev->udev->dev, buf)) {
@@ -1281,7 +1285,9 @@ static int ax88178_bind(struct usbnet *dev, struct usb_interface *intf)
 	int ret;
 	u8 buf[ETH_ALEN] = {0};
 
-	usbnet_get_endpoints(dev,intf);
+	ret = usbnet_get_endpoints(dev, intf);
+	if (ret)
+		return ret;
 
 	/* Get the MAC address */
 	ret = asix_read_cmd(dev, AX_CMD_READ_NODE_ID, 0, 0, ETH_ALEN, buf, 0);
-- 
2.39.5 (Apple Git-154)

Re: [PATCH v2] net: usb: asix_devices: Check return value of usbnet_get_endpoints

[patchwork-bot+netdevbpf]

Hello:

This patch was applied to netdev/net.git (main)
by Jakub Kicinski <kuba@kernel.org>:

On Mon, 27 Oct 2025 00:43:16 +0800 you wrote:
> The code did not check the return value of usbnet_get_endpoints.
> Add checks and return the error if it fails to transfer the error.
> 
> Found via static anlaysis and this is similar to
> commit 07161b2416f7 ("sr9800: Add check for usbnet_get_endpoints").
> 
> Fixes: 933a27d39e0e ("USB: asix - Add AX88178 support and many other changes")
> Fixes: 2e55cc7210fe ("[PATCH] USB: usbnet (3/9) module for ASIX Ethernet adapters")
> Cc: stable@vger.kernel.org
> Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
> 
> [...]

Here is the summary with links:
  - [v2] net: usb: asix_devices: Check return value of usbnet_get_endpoints
    https://git.kernel.org/netdev/net/c/dc89548c6926

You are awesome, thank you!
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