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-rw-r--r--drivers/media/dvb/dvb-usb/m920x.c38
1 files changed, 22 insertions, 16 deletions
diff --git a/drivers/media/dvb/dvb-usb/m920x.c b/drivers/media/dvb/dvb-usb/m920x.c
index 350cdc90b9c..1156b7df797 100644
--- a/drivers/media/dvb/dvb-usb/m920x.c
+++ b/drivers/media/dvb/dvb-usb/m920x.c
@@ -59,7 +59,7 @@ static inline int m920x_write(struct usb_device *udev, u8 request,
static int m920x_init(struct dvb_usb_device *d, struct m920x_inits *rc_seq)
{
- int ret = 0, i, epi;
+ int ret = 0, i, epi, flags = 0;
int adap_enabled[M9206_MAX_ADAPTERS] = { 0 };
/* Remote controller init. */
@@ -79,26 +79,32 @@ static int m920x_init(struct dvb_usb_device *d, struct m920x_inits *rc_seq)
deb("Initialising remote control success\n");
}
- for (i = 0; i < d->props.num_adapters; i++) {
- epi = d->adapter[i].props.stream.endpoint - 0x81;
+ for (i = 0; i < d->props.num_adapters; i++)
+ flags |= d->adapter[i].props.caps;
- if (epi < 0 || epi >= M9206_MAX_ADAPTERS) {
- printk(KERN_INFO "m920x: Unexpected adapter endpoint!\n");
- return -EINVAL;
- }
+ /* Some devices(Dposh) might crash if we attempt touch at all. */
+ if (flags & DVB_USB_ADAP_HAS_PID_FILTER) {
+ for (i = 0; i < d->props.num_adapters; i++) {
+ epi = d->adapter[i].props.stream.endpoint - 0x81;
- adap_enabled[epi] = 1;
- }
+ if (epi < 0 || epi >= M9206_MAX_ADAPTERS) {
+ printk(KERN_INFO "m920x: Unexpected adapter endpoint!\n");
+ return -EINVAL;
+ }
- for (i = 0; i < M9206_MAX_ADAPTERS; i++) {
- if (adap_enabled[i])
- continue;
+ adap_enabled[epi] = 1;
+ }
- if ((ret = m920x_set_filter(d, 0x81 + i, 0, 0x0)) != 0)
- return ret;
+ for (i = 0; i < M9206_MAX_ADAPTERS; i++) {
+ if (adap_enabled[i])
+ continue;
- if ((ret = m920x_set_filter(d, 0x81 + i, 0, 0x02f5)) != 0)
- return ret;
+ if ((ret = m920x_set_filter(d, 0x81 + i, 0, 0x0)) != 0)
+ return ret;
+
+ if ((ret = m920x_set_filter(d, 0x81 + i, 0, 0x02f5)) != 0)
+ return ret;
+ }
}
return ret;