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V4L/DVB (9494): anysee: initialize anysee_usb_mutex statically 

anysee_usb_mutex is initialized at every time the anysee device is probed.
If the second anysee device is probed while anysee_usb_mutex is locked by
the first anysee device, the mutex is broken.

This patch fixes by initialize anysee_usb_mutex statically rather
than initialize at probe time.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Akinobu Mita 2008-10-29 21:16:04 -03:00 committed by Mauro Carvalho Chehab
parent 8268c8f545
commit dec0c46ac2
1 changed files with 1 additions and 3 deletions
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4
drivers/media/dvb/dvb-usb/anysee.c
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@ -46,7 +46,7 @@ module_param_named(delsys, dvb_usb_anysee_delsys, int, 0644);
MODULE_PARM_DESC(delsys, "select delivery mode (0=DVB-C, 1=DVB-T)");
DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
static struct mutex anysee_usb_mutex;
static DEFINE_MUTEX(anysee_usb_mutex);
static int anysee_ctrl_msg(struct dvb_usb_device *d, u8 *sbuf, u8 slen,
u8 *rbuf, u8 rlen)
@ -456,8 +456,6 @@ static int anysee_probe(struct usb_interface *intf,
struct usb_host_interface *alt;
int ret;
mutex_init(&anysee_usb_mutex);
/* There is one interface with two alternate settings.
Alternate setting 0 is for bulk transfer.
Alternate setting 1 is for isochronous transfer.