| Message ID | 20240320073715.2002973-1-nichen@iscas.ac.cn (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | [net] net: asix: Add check for usbnet_get_endpoints | expand |
Wed, Mar 20, 2024 at 08:37:15AM CET, nichen@iscas.ac.cn wrote: >Add check for usbnet_get_endpoints() and return the error if it fails >in order to transfer the error. > >Fixes: b4cdae20ef95 ("asix: Rename asix.c to asix_devices.c") Are you sure this is the commit that introduced this? Too lazy to look, but most probably this just moved already buggy code. >Signed-off-by: Chen Ni <nichen@iscas.ac.cn> >--- > 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 f7cff58fe044..4732a2951bf2 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 < 0) I don't think that usbnet_get_endpoints() can return positive value. Better to have just: ret = usbnet_get_endpoints(dev, intf); if (ret) >+ goto out; just "return ret" here. I know that the rest of the function does this too, don't copy odd pattern. > > /* Toggle the GPIOs in a manufacturer/model specific way */ > for (i = 2; i >= 0; i--) { >@@ -834,7 +836,9 @@ 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 < 0) >+ return ret; > > /* Maybe the boot loader passed the MAC address via device tree */ > if (!eth_platform_get_mac_address(&dev->udev->dev, buf)) { >@@ -1258,7 +1262,9 @@ 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 < 0) >+ return ret; > > /* Get the MAC address */ > ret = asix_read_cmd(dev, AX_CMD_READ_NODE_ID, 0, 0, ETH_ALEN, buf, 0); >-- >2.25.1 > >
diff --git a/drivers/net/usb/asix_devices.c b/drivers/net/usb/asix_devices.c index f7cff58fe044..4732a2951bf2 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 < 0) + goto out; /* Toggle the GPIOs in a manufacturer/model specific way */ for (i = 2; i >= 0; i--) { @@ -834,7 +836,9 @@ 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 < 0) + return ret; /* Maybe the boot loader passed the MAC address via device tree */ if (!eth_platform_get_mac_address(&dev->udev->dev, buf)) { @@ -1258,7 +1262,9 @@ 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 < 0) + return ret; /* Get the MAC address */ ret = asix_read_cmd(dev, AX_CMD_READ_NODE_ID, 0, 0, ETH_ALEN, buf, 0);
Add check for usbnet_get_endpoints() and return the error if it fails in order to transfer the error. Fixes: b4cdae20ef95 ("asix: Rename asix.c to asix_devices.c") Signed-off-by: Chen Ni <nichen@iscas.ac.cn> --- drivers/net/usb/asix_devices.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-)