r871xu_dev_remove failed to call r8712_free_drv_sw() and free the
resource (e.g., struct urb) due to the failure of firmware loading.
Fix this by invoking r8712_free_drv_sw at the failure site.
Reported-by: syzbot+1c46f3771695bccbdb3a@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: b4383c971bc5 ("staging: rtl8712: handle firmware load failure")
Signed-off-by: Dongliang Mu <mudongliangabcd@xxxxxxxxx>
---
v1->v2: fix the initialization of pnetdev
drivers/staging/rtl8712/usb_intf.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/drivers/staging/rtl8712/usb_intf.c b/drivers/staging/rtl8712/usb_intf.c
index dc21e7743349..57e773464e18 100644
--- a/drivers/staging/rtl8712/usb_intf.c
+++ b/drivers/staging/rtl8712/usb_intf.c
@@ -593,13 +593,14 @@ static void r871xu_dev_remove(struct usb_interface *pusb_intf)
struct usb_device *udev = interface_to_usbdev(pusb_intf);
if (pnetdev) {
+ struct net_device *newpnetdev = NULL;
struct _adapter *padapter = netdev_priv(pnetdev);
/* never exit with a firmware callback pending */
wait_for_completion(&padapter->rtl8712_fw_ready);
- pnetdev = usb_get_intfdata(pusb_intf);
+ newpnetdev = usb_get_intfdata(pusb_intf);
usb_set_intfdata(pusb_intf, NULL);
- if (!pnetdev)
+ if (!newpnetdev)
goto firmware_load_fail;
release_firmware(padapter->fw);
if (drvpriv.drv_registered)
@@ -625,6 +626,10 @@ static void r871xu_dev_remove(struct usb_interface *pusb_intf)
*/
if (udev->state != USB_STATE_NOTATTACHED)
usb_reset_device(udev);
+ if (pnetdev) {
+ struct _adapter *padapter = netdev_priv(pnetdev);
+ r8712_free_drv_sw(padapter);
+ }
}
static int __init r8712u_drv_entry(void)
--
2.25.1
