On 11/6/2019 5:54 AM, Pan Bian wrote: > The member hsotg->desc_gen_cache is assigned NULL after it is destroyed > to avoid being freed twice when the call to usb_add_hcd() fails. > > Fixes: 3b5fcc9ac2f4 ("usb: dwc2: host: use kmem cache to allocate descriptors") > > Signed-off-by: Pan Bian <bianpan2016@xxxxxxx> Acked-by: Minas Harutyunyan <hminas@xxxxxxxxxxxx> > --- > drivers/usb/dwc2/hcd.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/drivers/usb/dwc2/hcd.c b/drivers/usb/dwc2/hcd.c > index 81afe553aa66..3b943352b296 100644 > --- a/drivers/usb/dwc2/hcd.c > +++ b/drivers/usb/dwc2/hcd.c > @@ -5183,6 +5183,7 @@ int dwc2_hcd_init(struct dwc2_hsotg *hsotg) > "unable to create dwc2 hs isoc desc cache\n"); > > kmem_cache_destroy(hsotg->desc_gen_cache); > + hsotg->desc_gen_cache = NULL; > > /* > * Disable descriptor dma mode since it will not be >