Messages in this thread Patch in this message | | | From | Pan Bian <> | Subject | [PATCH 1/1] usb: dwc2: fix potential double free | Date | Wed, 6 Nov 2019 09:54:33 +0800 |
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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@163.com> --- 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 -- 2.7.4
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