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| author | Matthias Kaehlcke <matthias.kaehlcke@gmail.com> | 2007-04-28 20:00:18 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@infradead.org> | 2007-05-09 10:12:31 -0300 |
| commit | 8df0c87cc33646a19a59c0f93c4f9a330d5ca5eb (patch) | |
| tree | 35ccbccd3a5a9fbd1b09bf26426eab12ae8d2f66 /drivers | |
| parent | 5f12491c36acb94670d822a90c9295f6fd671c8a (diff) | |
| download | blackbird-op-linux-8df0c87cc33646a19a59c0f93c4f9a330d5ca5eb.tar.gz blackbird-op-linux-8df0c87cc33646a19a59c0f93c4f9a330d5ca5eb.zip | |
V4L/DVB (5572): Pvrusb2: use mutex instead of semaphore
The pvrusb2 driver use a semaphore as mutex. use the mutex API instead
of the (binary) semaphore.
Signed-off-by: Matthias Kaehlcke <matthias.kaehlcke@gmail.com>
Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/media/video/pvrusb2/pvrusb2-hdw.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/media/video/pvrusb2/pvrusb2-hdw.c b/drivers/media/video/pvrusb2/pvrusb2-hdw.c index acf651e01f94..1311891e7ee3 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-hdw.c +++ b/drivers/media/video/pvrusb2/pvrusb2-hdw.c @@ -83,7 +83,7 @@ static struct pvr2_string_table pvr2_client_lists[] = { }; static struct pvr2_hdw *unit_pointers[PVR_NUM] = {[ 0 ... PVR_NUM-1 ] = NULL}; -static DECLARE_MUTEX(pvr2_unit_sem); +static DEFINE_MUTEX(pvr2_unit_mtx); static int ctlchg = 0; static int initusbreset = 1; @@ -2076,14 +2076,14 @@ struct pvr2_hdw *pvr2_hdw_create(struct usb_interface *intf, hdw->ctl_read_urb = usb_alloc_urb(0,GFP_KERNEL); if (!hdw->ctl_read_urb) goto fail; - down(&pvr2_unit_sem); do { + mutex_lock(&pvr2_unit_mtx); do { for (idx = 0; idx < PVR_NUM; idx++) { if (unit_pointers[idx]) continue; hdw->unit_number = idx; unit_pointers[idx] = hdw; break; } - } while (0); up(&pvr2_unit_sem); + } while (0); mutex_unlock(&pvr2_unit_mtx); cnt1 = 0; cnt2 = scnprintf(hdw->name+cnt1,sizeof(hdw->name)-cnt1,"pvrusb2"); @@ -2186,13 +2186,13 @@ void pvr2_hdw_destroy(struct pvr2_hdw *hdw) } pvr2_i2c_core_done(hdw); pvr2_hdw_remove_usb_stuff(hdw); - down(&pvr2_unit_sem); do { + mutex_lock(&pvr2_unit_mtx); do { if ((hdw->unit_number >= 0) && (hdw->unit_number < PVR_NUM) && (unit_pointers[hdw->unit_number] == hdw)) { unit_pointers[hdw->unit_number] = NULL; } - } while (0); up(&pvr2_unit_sem); + } while (0); mutex_unlock(&pvr2_unit_mtx); kfree(hdw->controls); kfree(hdw->mpeg_ctrl_info); kfree(hdw->std_defs); |
