diff options
| author | Jakub Kicinski <kuba@kernel.org> | 2022-07-07 12:07:37 -0700 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2022-07-07 12:07:37 -0700 |
| commit | 83ec88d81aa8762d4fb75f95365da6b73a38efe9 (patch) | |
| tree | 193501a42e488ec81871136d19e0edb129a4a154 /drivers/net/usb/usbnet.c | |
| parent | cf21b355ccb39b0de0b6a7362532bb5584c84a80 (diff) | |
| parent | ef4ab3ba4e4f99b1f3af3a7b74815f59394d822e (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
No conflicts.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/usb/usbnet.c')
| -rw-r--r-- | drivers/net/usb/usbnet.c | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c index 1100faab1858..e415465068ca 100644 --- a/drivers/net/usb/usbnet.c +++ b/drivers/net/usb/usbnet.c @@ -2130,7 +2130,7 @@ static void usbnet_async_cmd_cb(struct urb *urb) int usbnet_write_cmd_async(struct usbnet *dev, u8 cmd, u8 reqtype, u16 value, u16 index, const void *data, u16 size) { - struct usb_ctrlrequest *req = NULL; + struct usb_ctrlrequest *req; struct urb *urb; int err = -ENOMEM; void *buf = NULL; @@ -2148,7 +2148,7 @@ int usbnet_write_cmd_async(struct usbnet *dev, u8 cmd, u8 reqtype, if (!buf) { netdev_err(dev->net, "Error allocating buffer" " in %s!\n", __func__); - goto fail_free; + goto fail_free_urb; } } @@ -2172,14 +2172,21 @@ int usbnet_write_cmd_async(struct usbnet *dev, u8 cmd, u8 reqtype, if (err < 0) { netdev_err(dev->net, "Error submitting the control" " message: status=%d\n", err); - goto fail_free; + goto fail_free_all; } return 0; +fail_free_all: + kfree(req); fail_free_buf: kfree(buf); -fail_free: - kfree(req); + /* + * avoid a double free + * needed because the flag can be set only + * after filling the URB + */ + urb->transfer_flags = 0; +fail_free_urb: usb_free_urb(urb); fail: return err; |