Messages in this thread | | | Date | Tue, 5 Apr 2022 14:20:58 +0300 | From | Dan Carpenter <> | Subject | Re: [PATCH] staging: rtl8712: fix a potential memory leak in r871xu_drv_init() |
| |
On Tue, Apr 05, 2022 at 12:43:07PM +0800, xkernel.wang@foxmail.com wrote: > From: Xiaoke Wang <xkernel.wang@foxmail.com> > > In r871xu_drv_init(), if r8712_init_drv_sw() fails, then the memory > allocated by r8712_alloc_io_queue() in r8712_usb_dvobj_init() is not > properly released as there is no action will be performed by > r8712_usb_dvobj_deinit(). > To properly release it, we should call r8712_free_io_queue() in > r8712_usb_dvobj_deinit(). > > Besides, in r871xu_dev_remove(), r8712_usb_dvobj_deinit() will be called > by r871x_dev_unload() under condition `padapter->bup` and > r8712_free_io_queue() is called by r8712_free_drv_sw(). > However, r8712_usb_dvobj_deinit() does not rely on `padapter->bup` and > calling r8712_free_io_queue() in r8712_free_drv_sw() is negative for > better understading the code. > So I move r8712_usb_dvobj_deinit() into r871xu_dev_remove(), and remove > r8712_free_io_queue() from r8712_free_drv_sw(). > > Signed-off-by: Xiaoke Wang <xkernel.wang@foxmail.com> > ---
Sounds reasonable.
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
regards, dan carpenter
| |