From 1fc659894994c7faa67e51a4b5a981ab4cf0f3a5 Mon Sep 17 00:00:00 2001 From: John Youn Date: Mon, 29 Feb 2016 17:53:35 -0800 Subject: usb: dwc2: Fix issues in dwc2_complete_non_isoc_xfer_ddma() Fixes a static analysis issue in dwc2_complete_non_isoc_xfer_ddma(). The qtd was being passed to a function after being freed. It was not being used in the function so this doesn't fix any bugs. But it fixes up the warning and makes the code safer by setting qtd to NULL and not using it at all. Reported-by: Felipe Balbi Signed-off-by: John Youn Signed-off-by: Felipe Balbi --- drivers/usb/dwc2/hcd_ddma.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'drivers/usb') diff --git a/drivers/usb/dwc2/hcd_ddma.c b/drivers/usb/dwc2/hcd_ddma.c index 27350d0..0e1d42b 100644 --- a/drivers/usb/dwc2/hcd_ddma.c +++ b/drivers/usb/dwc2/hcd_ddma.c @@ -1245,8 +1245,10 @@ static void dwc2_complete_non_isoc_xfer_ddma(struct dwc2_hsotg *hsotg, for (i = 0; i < qtd_desc_count; i++) { if (dwc2_process_non_isoc_desc(hsotg, chan, chnum, qtd, desc_num, halt_status, - &xfer_done)) + &xfer_done)) { + qtd = NULL; goto stop_scan; + } desc_num++; } @@ -1261,7 +1263,7 @@ stop_scan: if (halt_status == DWC2_HC_XFER_STALL) qh->data_toggle = DWC2_HC_PID_DATA0; else - dwc2_hcd_save_data_toggle(hsotg, chan, chnum, qtd); + dwc2_hcd_save_data_toggle(hsotg, chan, chnum, NULL); } if (halt_status == DWC2_HC_XFER_COMPLETE) { -- cgit v1.1