From 73f7fd8861ef4abeec0fea775f607d232a56962a Mon Sep 17 00:00:00 2001 From: Akanksha Srivastava Date: Fri, 14 Oct 2016 01:51:31 +0530 Subject: [PATCH] usb: Change *_exitfn return type from int to void The *_exitfn functions cannot fail and should not be returning int. This also removes the passthru_exitfn since this callback does nothing as of now. This was suggested as a Bite-sized task for code cleanup. Signed-off-by: Akanksha Srivastava Reviewed-by: Stefan Hajnoczi Signed-off-by: Michael Tokarev --- hw/usb/ccid-card-emulated.c | 3 +-- hw/usb/ccid-card-passthru.c | 6 ------ hw/usb/ccid.h | 2 +- hw/usb/dev-smartcard-reader.c | 11 +++++------ 4 files changed, 7 insertions(+), 15 deletions(-) diff --git a/hw/usb/ccid-card-emulated.c b/hw/usb/ccid-card-emulated.c index 3213f9f8af..eceb5f3ee2 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 +564,6 @@ 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; } static Property emulated_card_properties[] = { diff --git a/hw/usb/ccid-card-passthru.c b/hw/usb/ccid-card-passthru.c index 325129a2f6..88cb6d8978 100644 --- a/hw/usb/ccid-card-passthru.c +++ b/hw/usb/ccid-card-passthru.c @@ -365,11 +365,6 @@ static int passthru_initfn(CCIDCardState *base) return 0; } -static int passthru_exitfn(CCIDCardState *base) -{ - return 0; -} - static VMStateDescription passthru_vmstate = { .name = "ccid-card-passthru", .version_id = 1, @@ -396,7 +391,6 @@ static void passthru_class_initfn(ObjectClass *klass, void *data) CCIDCardClass *cc = CCID_CARD_CLASS(klass); cc->initfn = passthru_initfn; - cc->exitfn = passthru_exitfn; cc->get_atr = passthru_get_atr; cc->apdu_from_guest = passthru_apdu_from_guest; set_bit(DEVICE_CATEGORY_INPUT, dc->categories); diff --git a/hw/usb/ccid.h b/hw/usb/ccid.h index 9334da8acd..1f070116d6 100644 --- a/hw/usb/ccid.h +++ b/hw/usb/ccid.h @@ -33,7 +33,7 @@ typedef struct CCIDCardClass { void (*apdu_from_guest)(CCIDCardState *card, const uint8_t *apdu, uint32_t len); - int (*exitfn)(CCIDCardState *card); + void (*exitfn)(CCIDCardState *card); int (*initfn)(CCIDCardState *card); } CCIDCardClass; diff --git a/hw/usb/dev-smartcard-reader.c b/hw/usb/dev-smartcard-reader.c index af4b851356..89e11b68c4 100644 --- a/hw/usb/dev-smartcard-reader.c +++ b/hw/usb/dev-smartcard-reader.c @@ -508,14 +508,14 @@ static void ccid_card_apdu_from_guest(CCIDCardState *card, } } -static int ccid_card_exitfn(CCIDCardState *card) +static void ccid_card_exitfn(CCIDCardState *card) { CCIDCardClass *cc = CCID_CARD_GET_CLASS(card); if (cc->exitfn) { - return cc->exitfn(card); + cc->exitfn(card); } - return 0; + } static int ccid_card_initfn(CCIDCardState *card) @@ -1279,7 +1279,6 @@ void ccid_card_card_inserted(CCIDCardState *card) static int ccid_card_exit(DeviceState *qdev) { - int ret = 0; CCIDCardState *card = CCID_CARD(qdev); USBDevice *dev = USB_DEVICE(qdev->parent_bus->parent); USBCCIDState *s = USB_CCID_DEV(dev); @@ -1287,9 +1286,9 @@ static int ccid_card_exit(DeviceState *qdev) if (ccid_card_inserted(s)) { ccid_card_card_removed(card); } - ret = ccid_card_exitfn(card); + ccid_card_exitfn(card); s->card = NULL; - return ret; + return 0; } static int ccid_card_init(DeviceState *qdev)