diff options
Diffstat (limited to 'drivers/media/dvb/dvb-core')
-rw-r--r-- | drivers/media/dvb/dvb-core/dmxdev.c | 2 | ||||
-rw-r--r-- | drivers/media/dvb/dvb-core/dvb_ca_en50221.c | 10 | ||||
-rw-r--r-- | drivers/media/dvb/dvb-core/dvb_demux.c | 10 | ||||
-rw-r--r-- | drivers/media/dvb/dvb-core/dvb_frontend.c | 10 | ||||
-rw-r--r-- | drivers/media/dvb/dvb-core/dvb_net.c | 12 |
5 files changed, 28 insertions, 16 deletions
diff --git a/drivers/media/dvb/dvb-core/dmxdev.c b/drivers/media/dvb/dvb-core/dmxdev.c index 425862ffb285..0042306ea11b 100644 --- a/drivers/media/dvb/dvb-core/dmxdev.c +++ b/drivers/media/dvb/dvb-core/dmxdev.c @@ -207,7 +207,7 @@ static int dvb_dvr_release(struct inode *inode, struct file *file) } /* TODO */ dvbdev->users--; - if(dvbdev->users==-1 && dmxdev->exit==1) { + if (dvbdev->users == 1 && dmxdev->exit == 1) { fops_put(file->f_op); file->f_op = NULL; mutex_unlock(&dmxdev->mutex); diff --git a/drivers/media/dvb/dvb-core/dvb_ca_en50221.c b/drivers/media/dvb/dvb-core/dvb_ca_en50221.c index ef259a0718ac..cb97e6b85432 100644 --- a/drivers/media/dvb/dvb-core/dvb_ca_en50221.c +++ b/drivers/media/dvb/dvb-core/dvb_ca_en50221.c @@ -1318,8 +1318,11 @@ static ssize_t dvb_ca_en50221_io_write(struct file *file, fragbuf[0] = connection_id; fragbuf[1] = ((fragpos + fraglen) < count) ? 0x80 : 0x00; - if ((status = copy_from_user(fragbuf + 2, buf + fragpos, fraglen)) != 0) + status = copy_from_user(fragbuf + 2, buf + fragpos, fraglen); + if (status) { + status = -EFAULT; goto exit; + } timeout = jiffies + HZ / 2; written = 0; @@ -1494,8 +1497,11 @@ static ssize_t dvb_ca_en50221_io_read(struct file *file, char __user * buf, hdr[0] = slot; hdr[1] = connection_id; - if ((status = copy_to_user(buf, hdr, 2)) != 0) + status = copy_to_user(buf, hdr, 2); + if (status) { + status = -EFAULT; goto exit; + } status = pktlen; exit: diff --git a/drivers/media/dvb/dvb-core/dvb_demux.c b/drivers/media/dvb/dvb-core/dvb_demux.c index 977ddba3e235..4a88a3e4db2b 100644 --- a/drivers/media/dvb/dvb-core/dvb_demux.c +++ b/drivers/media/dvb/dvb-core/dvb_demux.c @@ -1130,13 +1130,9 @@ static int dvbdmx_write(struct dmx_demux *demux, const char __user *buf, size_t if ((!demux->frontend) || (demux->frontend->source != DMX_MEMORY_FE)) return -EINVAL; - p = kmalloc(count, GFP_USER); - if (!p) - return -ENOMEM; - if (copy_from_user(p, buf, count)) { - kfree(p); - return -EFAULT; - } + p = memdup_user(buf, count); + if (IS_ERR(p)) + return PTR_ERR(p); if (mutex_lock_interruptible(&dvbdemux->mutex)) { kfree(p); return -ERESTARTSYS; diff --git a/drivers/media/dvb/dvb-core/dvb_frontend.c b/drivers/media/dvb/dvb-core/dvb_frontend.c index 44ae89ecef94..4d45b7d6b3fb 100644 --- a/drivers/media/dvb/dvb-core/dvb_frontend.c +++ b/drivers/media/dvb/dvb-core/dvb_frontend.c @@ -465,7 +465,7 @@ static void dvb_frontend_swzigzag(struct dvb_frontend *fe) if ((fepriv->state & FESTATE_SEARCHING_FAST) || (fepriv->state & FESTATE_RETUNE)) { fepriv->delay = fepriv->min_delay; - /* peform a tune */ + /* perform a tune */ retval = dvb_frontend_swzigzag_autotune(fe, fepriv->check_wrapped); if (retval < 0) { @@ -791,7 +791,7 @@ static int dvb_frontend_start(struct dvb_frontend *fe) return 0; } -static void dvb_frontend_get_frequeny_limits(struct dvb_frontend *fe, +static void dvb_frontend_get_frequency_limits(struct dvb_frontend *fe, u32 *freq_min, u32 *freq_max) { *freq_min = max(fe->ops.info.frequency_min, fe->ops.tuner_ops.info.frequency_min); @@ -815,7 +815,7 @@ static int dvb_frontend_check_parameters(struct dvb_frontend *fe, u32 freq_max; /* range check: frequency */ - dvb_frontend_get_frequeny_limits(fe, &freq_min, &freq_max); + dvb_frontend_get_frequency_limits(fe, &freq_min, &freq_max); if ((freq_min && parms->frequency < freq_min) || (freq_max && parms->frequency > freq_max)) { printk(KERN_WARNING "DVB: adapter %i frontend %i frequency %u out of range (%u..%u)\n", @@ -1627,7 +1627,7 @@ static int dvb_frontend_ioctl_legacy(struct file *file, case FE_GET_INFO: { struct dvb_frontend_info* info = parg; memcpy(info, &fe->ops.info, sizeof(struct dvb_frontend_info)); - dvb_frontend_get_frequeny_limits(fe, &info->frequency_min, &info->frequency_max); + dvb_frontend_get_frequency_limits(fe, &info->frequency_min, &info->frequency_max); /* Force the CAN_INVERSION_AUTO bit on. If the frontend doesn't * do it, it is done for it. */ @@ -1726,7 +1726,7 @@ static int dvb_frontend_ioctl_legacy(struct file *file, * (stv0299 for instance) take longer than 8msec to * respond to a set_voltage command. Those switches * need custom routines to switch properly. For all - * other frontends, the following shoule work ok. + * other frontends, the following should work ok. * Dish network legacy switches (as used by Dish500) * are controlled by sending 9-bit command words * spaced 8msec apart. diff --git a/drivers/media/dvb/dvb-core/dvb_net.c b/drivers/media/dvb/dvb-core/dvb_net.c index f6dac2bb0ac6..6c3a8a06ccab 100644 --- a/drivers/media/dvb/dvb-core/dvb_net.c +++ b/drivers/media/dvb/dvb-core/dvb_net.c @@ -351,6 +351,7 @@ static void dvb_net_ule( struct net_device *dev, const u8 *buf, size_t buf_len ) const u8 *ts, *ts_end, *from_where = NULL; u8 ts_remain = 0, how_much = 0, new_ts = 1; struct ethhdr *ethh = NULL; + bool error = false; #ifdef ULE_DEBUG /* The code inside ULE_DEBUG keeps a history of the last 100 TS cells processed. */ @@ -460,10 +461,16 @@ static void dvb_net_ule( struct net_device *dev, const u8 *buf, size_t buf_len ) /* Drop partly decoded SNDU, reset state, resync on PUSI. */ if (priv->ule_skb) { - dev_kfree_skb( priv->ule_skb ); + error = true; + dev_kfree_skb(priv->ule_skb); + } + + if (error || priv->ule_sndu_remain) { dev->stats.rx_errors++; dev->stats.rx_frame_errors++; + error = false; } + reset_ule(priv); priv->need_pusi = 1; continue; @@ -535,6 +542,7 @@ static void dvb_net_ule( struct net_device *dev, const u8 *buf, size_t buf_len ) from_where += 2; } + priv->ule_sndu_remain = priv->ule_sndu_len + 2; /* * State of current TS: * ts_remain (remaining bytes in the current TS cell) @@ -544,6 +552,7 @@ static void dvb_net_ule( struct net_device *dev, const u8 *buf, size_t buf_len ) */ switch (ts_remain) { case 1: + priv->ule_sndu_remain--; priv->ule_sndu_type = from_where[0] << 8; priv->ule_sndu_type_1 = 1; /* first byte of ule_type is set. */ ts_remain -= 1; from_where += 1; @@ -557,6 +566,7 @@ static void dvb_net_ule( struct net_device *dev, const u8 *buf, size_t buf_len ) default: /* complete ULE header is present in current TS. */ /* Extract ULE type field. */ if (priv->ule_sndu_type_1) { + priv->ule_sndu_type_1 = 0; priv->ule_sndu_type |= from_where[0]; from_where += 1; /* points to payload start. */ ts_remain -= 1; |