From: Kang Chen <void0red@xxxxxxxxx> This driver uses the unified memory management api, so replace kzalloc with devm_kzalloc to avoid a memory leak and add a check for this allocation. Reported-by: eriri <1527030098@xxxxxx> Link: https://bugzilla.kernel.org/show_bug.cgi?id=217081 Signed-off-by: Kang Chen <void0red@xxxxxxxxx> --- v2 -> v1: replace kzalloc with devm_kzalloc drivers/usb/gadget/udc/mv_udc_core.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/usb/gadget/udc/mv_udc_core.c b/drivers/usb/gadget/udc/mv_udc_core.c index b397f3a84..08474c08d 100644 --- a/drivers/usb/gadget/udc/mv_udc_core.c +++ b/drivers/usb/gadget/udc/mv_udc_core.c @@ -2229,7 +2229,11 @@ static int mv_udc_probe(struct platform_device *pdev) INIT_LIST_HEAD(&udc->status_req->queue); /* allocate a small amount of memory to get valid address */ - udc->status_req->req.buf = kzalloc(8, GFP_KERNEL); + udc->status_req->req.buf = devm_kzalloc(&pdev->dev, 8, GFP_KERNEL); + if (!udc->status_req->req.buf) { + retval = -ENOMEM; + goto err_destroy_dma; + } udc->status_req->req.dma = DMA_ADDR_INVALID; udc->resume_state = USB_STATE_NOTATTACHED; -- 2.34.1
