7 Aug
2020
7 Aug
'20
11:50 a.m.
"Takashi Iwai" <tiwai@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