"Takashi Iwai" <ti...@suse.de>写道： > On Fri, 07 Aug 2020 09:12:27 +0200, > Dinghao Liu wrote: > > > > When snd_usb_mixer_add_control() fails, elem needs to be > > freed just like when snd_ctl_new1() fails. However, current > > code is returning directly and ends up leaking memory. > > No, this would lead to double-free. snd_ctl_add() shows a kind of > special behavior, it already releases the object at its error path. >
It's clear to me, thanks! Regards, Dinghao
