Hello Nagarjuna Kristam,
This is a semi-automatic email about new static checker warnings.
The patch 49db427232fe: "usb: gadget: Add UDC driver for tegra XUSB
device mode controller" from Oct 18, 2019, leads to the following
Smatch complaint:
drivers/usb/gadget/udc/tegra-xudc.c:2683 tegra_xudc_handle_transfer_completion()
warn: variable dereferenced before check 'ep->desc' (see line 2681)
drivers/usb/gadget/udc/tegra-xudc.c
2680
2681 tegra_xudc_req_done(ep, req, 0);
^^
ep->desc gets dereferenced inside the function.
2682
2683 if (ep->desc && usb_endpoint_xfer_control(ep->desc))
^^^^^^^^
So this check is too late. Hopefully, the NULL check can be deleted?
2684 tegra_xudc_ep0_req_done(xudc);
2685
regards,
dan carpenter
