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usb: dwc2: Fix issues in dwc2_complete_non_isoc_xfer_ddma()

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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 <balbi@kernel.org>
Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
This commit is contained in:
John Youn 2016-02-29 17:53:35 -08:00 committed by Felipe Balbi
parent 6c0c0951bb
commit 1fc6598949
1 changed files with 4 additions and 2 deletions
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6
drivers/usb/dwc2/hcd_ddma.c
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@ -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 @@ static void dwc2_complete_non_isoc_xfer_ddma(struct dwc2_hsotg *hsotg,
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) {