[PATCH] USBATM: semaphore to mutex conversion

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>

1 files changed, 14 insertions, 14 deletions

diff --git a/drivers/usb/atm/usbatm.c b/drivers/usb/atm/usbatm.c
index 5d339af16248..c1211fc037d9 100644
--- a/drivers/usb/atm/usbatm.c
+++ b/drivers/usb/atm/usbatm.c
@@ -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);