On Mon, 11 Oct 2021 21:21:14 +0800, Yang Yingliang wrote: > I got a null-ptr-deref report when doing fault injection test: > > general protection fault, probably for non-canonical address 0xdffffc0000000022: 0000 [#1] SMP KASAN PTI > KASAN: null-ptr-deref in range [0x0000000000000110-0x0000000000000117] > RIP: 0010:device_del+0x132/0xdc0 > Call Trace: > cdev_device_del+0x1a/0x80 > devm_rtc_unregister_device+0x37/0x80 > release_nodes+0xc3/0x3b0 > > [...] Applied, thanks! [1/1] rtc: class: don't call cdev_device_del() when cdev_device_add() failed commit: 789c1093f02c436b320d78a739f9610c8271cb73 Best regards, -- Alexandre Belloni <alexandre.belloni@xxxxxxxxxxx>