usb-ccid: convert CCIDCardClass::exitfn() -> unrealize()

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20180125171432.13554-4-f4bug@amsat.org
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>

hw/usb/ccid-card-emulated.c

@@ -547,7 +547,7 @@ static void emulated_realize(CCIDCardState *base, Error **errp)
                        card, QEMU_THREAD_JOINABLE);
 }
 
-static void emulated_exitfn(CCIDCardState *base)
+static void emulated_unrealize(CCIDCardState *base, Error **errp)
 {
     EmulatedState *card = EMULATED_CCID_CARD(base);
     VEvent *vevent = vevent_new(VEVENT_LAST, NULL, NULL);
@@ -582,7 +582,7 @@ static void emulated_class_initfn(ObjectClass *klass, void *data)
     CCIDCardClass *cc = CCID_CARD_CLASS(klass);
 
     cc->realize = emulated_realize;
-    cc->exitfn = emulated_exitfn;
+    cc->unrealize = emulated_unrealize;
     cc->get_atr = emulated_get_atr;
     cc->apdu_from_guest = emulated_apdu_from_guest;
     set_bit(DEVICE_CATEGORY_INPUT, dc->categories);

hw/usb/ccid-card-passthru.c

@@ -9,6 +9,7 @@
  */
 
 #include "qemu/osdep.h"
+#include "qapi/error.h"
 #include <cacard/vscard_common.h>
 #include "chardev/char-fe.h"
 #include "qemu/error-report.h"

hw/usb/ccid.h

@@ -28,13 +28,15 @@ typedef struct CCIDCardInfo CCIDCardInfo;
  * into the smartcard device (hw/ccid-card-*.c)
  */
 typedef struct CCIDCardClass {
+    /*< private >*/
     DeviceClass parent_class;
+    /*< public >*/
     const uint8_t *(*get_atr)(CCIDCardState *card, uint32_t *len);
     void (*apdu_from_guest)(CCIDCardState *card,
                             const uint8_t *apdu,
                             uint32_t len);
-    void (*exitfn)(CCIDCardState *card);
     void (*realize)(CCIDCardState *card, Error **errp);
+    void (*unrealize)(CCIDCardState *card, Error **errp);
 } CCIDCardClass;
 
 /*

hw/usb/dev-smartcard-reader.c

@@ -500,16 +500,6 @@ static void ccid_card_apdu_from_guest(CCIDCardState *card,
     }
 }
 
-static void ccid_card_exitfn(CCIDCardState *card)
-{
-    CCIDCardClass *cc = CCID_CARD_GET_CLASS(card);
-
-    if (cc->exitfn) {
-        cc->exitfn(card);
-    }
-
-}
-
 static bool ccid_has_pending_answers(USBCCIDState *s)
 {
     return s->pending_answers_num > 0;
@@ -1271,18 +1261,25 @@ void ccid_card_card_inserted(CCIDCardState *card)
     ccid_on_slot_change(s, true);
 }
 
-static int ccid_card_exit(DeviceState *qdev)
+static void ccid_card_unrealize(DeviceState *qdev, Error **errp)
 {
     CCIDCardState *card = CCID_CARD(qdev);
+    CCIDCardClass *cc = CCID_CARD_GET_CLASS(card);
     USBDevice *dev = USB_DEVICE(qdev->parent_bus->parent);
     USBCCIDState *s = USB_CCID_DEV(dev);
+    Error *local_err = NULL;
 
     if (ccid_card_inserted(s)) {
         ccid_card_card_removed(card);
     }
-    ccid_card_exitfn(card);
+    if (cc->unrealize) {
+        cc->unrealize(card, &local_err);
+        if (local_err != NULL) {
+            error_propagate(errp, local_err);
+            return;
+        }
+    }
     s->card = NULL;
-    return 0;
 }
 
 static void ccid_card_realize(DeviceState *qdev, Error **errp)
@@ -1472,7 +1469,7 @@ static void ccid_card_class_init(ObjectClass *klass, void *data)
     DeviceClass *k = DEVICE_CLASS(klass);
     k->bus_type = TYPE_CCID_BUS;
     k->realize = ccid_card_realize;
-    k->exit = ccid_card_exit;
+    k->unrealize = ccid_card_unrealize;
     k->props = ccid_props;
 }