[Qemu-trivial] [PATCH] usb: Change *_exitfn return type from void to int

[Akanksha Srivastava <akanksha.dlf@gmail.com>]

The *_exitfn functions cannot fail and should not be
returning int.
Suggested as a Bite-sized task
Signed-off-by: Akanksha Srivastava <akanksha.dlf@gmail.com>
---
 hw/usb/ccid-card-emulated.c | 4 ++--
 hw/usb/ccid-card-passthru.c | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/hw/usb/ccid-card-emulated.c b/hw/usb/ccid-card-emulated.c
index 3213f9f..abb2773 100644
--- a/hw/usb/ccid-card-emulated.c
+++ b/hw/usb/ccid-card-emulated.c
@@ -547,7 +547,7 @@ static int emulated_initfn(CCIDCardState *base)
     return 0;
 }
 
-static int emulated_exitfn(CCIDCardState *base)
+static void emulated_exitfn(CCIDCardState *base)
 {
     EmulatedState *card = EMULATED_CCID_CARD(base);
     VEvent *vevent = vevent_new(VEVENT_LAST, NULL, NULL);
@@ -564,7 +564,7 @@ static int emulated_exitfn(CCIDCardState *base)
     qemu_mutex_destroy(&card->handle_apdu_mutex);
     qemu_mutex_destroy(&card->vreader_mutex);
     qemu_mutex_destroy(&card->event_list_mutex);
-    return 0;
+    return;
 }
 
 static Property emulated_card_properties[] = {
diff --git a/hw/usb/ccid-card-passthru.c b/hw/usb/ccid-card-passthru.c
index 2eacea7..2bd9cb2 100644
--- a/hw/usb/ccid-card-passthru.c
+++ b/hw/usb/ccid-card-passthru.c
@@ -364,9 +364,9 @@ static int passthru_initfn(CCIDCardState *base)
     return 0;
 }
 
-static int passthru_exitfn(CCIDCardState *base)
+static void passthru_exitfn(CCIDCardState *base)
 {
-    return 0;
+    return;
 }
 
 static VMStateDescription passthru_vmstate = {
-- 
1.9.1