In the dwc3_prepare_trbs_sg routine, when all data from request was
handled pending_sgs should be set to the number of mapped sgs that are
not queued up.
Currently the code will result in pending_sgs == queued_sgs. That
variables value will likely not be zero and break dwc3_prepare_trbs.
This patch fixes the setting of the variable to its intended purpose.
Signed-off-by: Michael Grzeschik <m.grzeschik@xxxxxxxxxxxxxx>
---
drivers/usb/dwc3/gadget.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 6227641f2d318..118b5bcc565d6 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -1242,7 +1242,7 @@ static int dwc3_prepare_trbs_sg(struct dwc3_ep *dep,
* don't include unused SG entries.
*/
if (length == 0) {
- req->num_pending_sgs -= req->request.num_mapped_sgs - req->num_queued_sgs;
+ req->num_pending_sgs = req->request.num_mapped_sgs - req->num_queued_sgs;
break;
}
--
2.29.2
