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[PATCH] USBATM: semaphore to mutex conversion

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This is the usbatm part of the Arjan, Jes and Ingo
mass semaphore to mutex conversion, reworked to apply on top
of the patches I just sent to you.  This time, with correct
attribution and signed-off lines.

Signed-off-by: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Duncan Sands <baldrick@free.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Arjan van de Ven
2006-01-13 15:52:55 +01:00
committed by Greg Kroah-Hartman
parent a3673d3cd1
commit ab3c81ff63
4 changed files with 35 additions and 32 deletions
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28
drivers/usb/atm/usbatm.c
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@@ -823,7 +823,7 @@ static int usbatm_atm_open(struct atm_vcc *vcc)
return -EINVAL;
}
down(&instance->serialize); /* vs self, usbatm_atm_close, usbatm_usb_disconnect */
mutex_lock(&instance->serialize); /* vs self, usbatm_atm_close, usbatm_usb_disconnect */
if (instance->disconnected) {
atm_dbg(instance, "%s: disconnected!\n", __func__);
@@ -867,7 +867,7 @@ static int usbatm_atm_open(struct atm_vcc *vcc)
set_bit(ATM_VF_PARTIAL, &vcc->flags);
set_bit(ATM_VF_READY, &vcc->flags);
up(&instance->serialize);
mutex_unlock(&instance->serialize);
atm_dbg(instance, "%s: allocated vcc data 0x%p\n", __func__, new);
@@ -875,7 +875,7 @@ static int usbatm_atm_open(struct atm_vcc *vcc)
fail:
kfree(new);
up(&instance->serialize);
mutex_unlock(&instance->serialize);
return ret;
}
@@ -896,7 +896,7 @@ static void usbatm_atm_close(struct atm_vcc *vcc)
usbatm_cancel_send(instance, vcc);
down(&instance->serialize); /* vs self, usbatm_atm_open, usbatm_usb_disconnect */
mutex_lock(&instance->serialize); /* vs self, usbatm_atm_open, usbatm_usb_disconnect */
tasklet_disable(&instance->rx_channel.tasklet);
if (instance->cached_vcc == vcc_data) {
@@ -919,7 +919,7 @@ static void usbatm_atm_close(struct atm_vcc *vcc)
clear_bit(ATM_VF_PARTIAL, &vcc->flags);
clear_bit(ATM_VF_ADDR, &vcc->flags);
up(&instance->serialize);
mutex_unlock(&instance->serialize);
atm_dbg(instance, "%s successful\n", __func__);
}
@@ -1009,9 +1009,9 @@ static int usbatm_do_heavy_init(void *arg)
if (!ret)
ret = usbatm_atm_init(instance);
down(&instance->serialize);
mutex_lock(&instance->serialize);
instance->thread_pid = -1;
up(&instance->serialize);
mutex_unlock(&instance->serialize);
complete_and_exit(&instance->thread_exited, ret);
}
@@ -1025,9 +1025,9 @@ static int usbatm_heavy_init(struct usbatm_data *instance)
return ret;
}
down(&instance->serialize);
mutex_lock(&instance->serialize);
instance->thread_pid = ret;
up(&instance->serialize);
mutex_unlock(&instance->serialize);
wait_for_completion(&instance->thread_started);
@@ -1110,7 +1110,7 @@ int usbatm_usb_probe(struct usb_interface *intf, const struct usb_device_id *id,
/* private fields */
kref_init(&instance->refcount); /* dropped in usbatm_usb_disconnect */
init_MUTEX(&instance->serialize);
mutex_init(&instance->serialize);
instance->thread_pid = -1;
init_completion(&instance->thread_started);
@@ -1273,18 +1273,18 @@ void usbatm_usb_disconnect(struct usb_interface *intf)
usb_set_intfdata(intf, NULL);
down(&instance->serialize);
mutex_lock(&instance->serialize);
instance->disconnected = 1;
if (instance->thread_pid >= 0)
kill_proc(instance->thread_pid, SIGTERM, 1);
up(&instance->serialize);
mutex_unlock(&instance->serialize);
wait_for_completion(&instance->thread_exited);
down(&instance->serialize);
mutex_lock(&instance->serialize);
list_for_each_entry(vcc_data, &instance->vcc_list, list)
vcc_release_async(vcc_data->vcc, -EPIPE);
up(&instance->serialize);
mutex_unlock(&instance->serialize);
tasklet_disable(&instance->rx_channel.tasklet);
tasklet_disable(&instance->tx_channel.tasklet);