| Message ID | 20190211150426.15285-1-TheSven73@gmail.com (mailing list archive) |
|---|---|
| State | Mainlined |
| Commit | 5895d311d28f2605e2f71c1a3e043ed38f3ac9d2 |
| Headers | show |
| Series | usb: phy: twl6030-usb: fix possible use-after-free on remove | expand |
diff --git a/drivers/usb/phy/phy-twl6030-usb.c b/drivers/usb/phy/phy-twl6030-usb.c index 183550b63faa..dade34d70419 100644 --- a/drivers/usb/phy/phy-twl6030-usb.c +++ b/drivers/usb/phy/phy-twl6030-usb.c @@ -400,7 +400,7 @@ static int twl6030_usb_remove(struct platform_device *pdev) { struct twl6030_usb *twl = platform_get_drvdata(pdev); - cancel_delayed_work(&twl->get_status_work); + cancel_delayed_work_sync(&twl->get_status_work); twl6030_interrupt_mask(TWL6030_USBOTG_INT_MASK, REG_INT_MSK_LINE_C); twl6030_interrupt_mask(TWL6030_USBOTG_INT_MASK,
In remove(), use cancel_delayed_work_sync() to cancel the delayed work. Otherwise there's a chance that this work will continue to run until after the device has been removed. This issue was detected with the help of Coccinelle. Cc: Tony Lindgren <tony@atomide.com> Cc: Bin Liu <b-liu@ti.com> Fixes: b6a619a883c3 ("usb: phy: Check initial state for twl6030") Signed-off-by: Sven Van Asbroeck <TheSven73@gmail.com> --- drivers/usb/phy/phy-twl6030-usb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)