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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 <akanksha.dlf@gmail.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
This commit is contained in:
Akanksha Srivastava 2016-10-14 01:51:31 +05:30 committed by Michael Tokarev
parent 936c223051
commit 73f7fd8861
4 changed files with 7 additions and 15 deletions
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3
hw/usb/ccid-card-emulated.c
View File

@ -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[] = {

6
hw/usb/ccid-card-passthru.c
View File

@ -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);

2
hw/usb/ccid.h
View File

@ -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;

11
hw/usb/dev-smartcard-reader.c
View File

@ -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)