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authorAkinobu Mita <akinobu.mita@gmail.com>2008-10-29 21:16:04 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2008-11-11 08:11:26 -0200
commitdec0c46ac2af9bbc4a2acd56e5bffbf02f20113e (patch)
tree64f6c7127d7c9892a5568be1ce5965d89c6ee230 /drivers
parent8268c8f54505e5b952d1705a7bf3b2a218ed26bf (diff)
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>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/media/dvb/dvb-usb/anysee.c4
1 files changed, 1 insertions, 3 deletions
diff --git a/drivers/media/dvb/dvb-usb/anysee.c b/drivers/media/dvb/dvb-usb/anysee.c
index c786359fba0..cd2edbcaa09 100644
--- a/drivers/media/dvb/dvb-usb/anysee.c
+++ b/drivers/media/dvb/dvb-usb/anysee.c
@@ -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.