Merge tag 'irqchip-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/core

Pull irqchip updates from Marc Zyngier:

   - New and improved irqdomain locking, closing a number of races that
     became apparent now that we are able to probe drivers in parallel

   - A bunch of OF node refcounting bugs have been fixed

   - We now have a new IPI mux, lifted from the Apple AIC code and
     made common. It is expected that riscv will eventually benefit
     from it

   - Two small fixes for the Broadcom L2 drivers

   - Various cleanups and minor bug fixes

Link: https://lore.kernel.org/r/20230218143452.3817627-1-maz@kernel.org

1 files changed, 41 insertions, 3 deletions

diff --git a/drivers/nfc/pn533/usb.c b/drivers/nfc/pn533/usb.c
index 6f71ac72012e..ed9c5e2cf3ad 100644
--- a/drivers/nfc/pn533/usb.c
+++ b/drivers/nfc/pn533/usb.c
@@ -153,10 +153,17 @@ static int pn533_usb_send_ack(struct pn533 *dev, gfp_t flags)
 	return usb_submit_urb(phy->ack_urb, flags);
 }
 
+struct pn533_out_arg {
+	struct pn533_usb_phy *phy;
+	struct completion done;
+};
+
 static int pn533_usb_send_frame(struct pn533 *dev,
 				struct sk_buff *out)
 {
 	struct pn533_usb_phy *phy = dev->phy;
+	struct pn533_out_arg arg;
+	void *cntx;
 	int rc;
 
 	if (phy->priv == NULL)
@@ -168,10 +175,17 @@ static int pn533_usb_send_frame(struct pn533 *dev,
 	print_hex_dump_debug("PN533 TX: ", DUMP_PREFIX_NONE, 16, 1,
 			     out->data, out->len, false);
 
+	init_completion(&arg.done);
+	cntx = phy->out_urb->context;
+	phy->out_urb->context = &arg;
+
 	rc = usb_submit_urb(phy->out_urb, GFP_KERNEL);
 	if (rc)
 		return rc;
 
+	wait_for_completion(&arg.done);
+	phy->out_urb->context = cntx;
+
 	if (dev->protocol_type == PN533_PROTO_REQ_RESP) {
 		/* request for response for sent packet directly */
 		rc = pn533_submit_urb_for_response(phy, GFP_KERNEL);
@@ -408,7 +422,31 @@ static int pn533_acr122_poweron_rdr(struct pn533_usb_phy *phy)
 	return arg.rc;
 }
 
-static void pn533_send_complete(struct urb *urb)
+static void pn533_out_complete(struct urb *urb)
+{
+	struct pn533_out_arg *arg = urb->context;
+	struct pn533_usb_phy *phy = arg->phy;
+
+	switch (urb->status) {
+	case 0:
+		break; /* success */
+	case -ECONNRESET:
+	case -ENOENT:
+		dev_dbg(&phy->udev->dev,
+			"The urb has been stopped (status %d)\n",
+			urb->status);
+		break;
+	case -ESHUTDOWN:
+	default:
+		nfc_err(&phy->udev->dev,
+			"Urb failure (status %d)\n",
+			urb->status);
+	}
+
+	complete(&arg->done);
+}
+
+static void pn533_ack_complete(struct urb *urb)
 {
 	struct pn533_usb_phy *phy = urb->context;
 
@@ -496,10 +534,10 @@ static int pn533_usb_probe(struct usb_interface *interface,
 
 	usb_fill_bulk_urb(phy->out_urb, phy->udev,
 			  usb_sndbulkpipe(phy->udev, out_endpoint),
-			  NULL, 0, pn533_send_complete, phy);
+			  NULL, 0, pn533_out_complete, phy);
 	usb_fill_bulk_urb(phy->ack_urb, phy->udev,
 			  usb_sndbulkpipe(phy->udev, out_endpoint),
-			  NULL, 0, pn533_send_complete, phy);
+			  NULL, 0, pn533_ack_complete, phy);
 
 	switch (id->driver_info) {
 	case PN533_DEVICE_STD: