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path: root/drivers/media/dvb/firewire/firedtv-ci.c
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Diffstat (limited to 'drivers/media/dvb/firewire/firedtv-ci.c')
-rw-r--r--drivers/media/dvb/firewire/firedtv-ci.c34
1 files changed, 16 insertions, 18 deletions
diff --git a/drivers/media/dvb/firewire/firedtv-ci.c b/drivers/media/dvb/firewire/firedtv-ci.c
index 8ffb565f070..e5ebdbfe8c1 100644
--- a/drivers/media/dvb/firewire/firedtv-ci.c
+++ b/drivers/media/dvb/firewire/firedtv-ci.c
@@ -45,11 +45,6 @@ static int fdtv_get_ca_flags(struct firedtv_tuner_status *stat)
return flags;
}
-static int fdtv_ca_reset(struct firedtv *fdtv)
-{
- return avc_ca_reset(fdtv) ? -EFAULT : 0;
-}
-
static int fdtv_ca_get_caps(void *arg)
{
struct ca_caps *cap = arg;
@@ -65,12 +60,14 @@ static int fdtv_ca_get_slot_info(struct firedtv *fdtv, void *arg)
{
struct firedtv_tuner_status stat;
struct ca_slot_info *slot = arg;
+ int err;
- if (avc_tuner_status(fdtv, &stat))
- return -EFAULT;
+ err = avc_tuner_status(fdtv, &stat);
+ if (err)
+ return err;
if (slot->num != 0)
- return -EFAULT;
+ return -EACCES;
slot->type = CA_CI;
slot->flags = fdtv_get_ca_flags(&stat);
@@ -81,21 +78,21 @@ static int fdtv_ca_app_info(struct firedtv *fdtv, void *arg)
{
struct ca_msg *reply = arg;
- return avc_ca_app_info(fdtv, reply->msg, &reply->length) ? -EFAULT : 0;
+ return avc_ca_app_info(fdtv, reply->msg, &reply->length);
}
static int fdtv_ca_info(struct firedtv *fdtv, void *arg)
{
struct ca_msg *reply = arg;
- return avc_ca_info(fdtv, reply->msg, &reply->length) ? -EFAULT : 0;
+ return avc_ca_info(fdtv, reply->msg, &reply->length);
}
static int fdtv_ca_get_mmi(struct firedtv *fdtv, void *arg)
{
struct ca_msg *reply = arg;
- return avc_ca_get_mmi(fdtv, reply->msg, &reply->length) ? -EFAULT : 0;
+ return avc_ca_get_mmi(fdtv, reply->msg, &reply->length);
}
static int fdtv_ca_get_msg(struct firedtv *fdtv, void *arg)
@@ -111,14 +108,15 @@ static int fdtv_ca_get_msg(struct firedtv *fdtv, void *arg)
err = fdtv_ca_info(fdtv, arg);
break;
default:
- if (avc_tuner_status(fdtv, &stat))
- err = -EFAULT;
- else if (stat.ca_mmi == 1)
+ err = avc_tuner_status(fdtv, &stat);
+ if (err)
+ break;
+ if (stat.ca_mmi == 1)
err = fdtv_ca_get_mmi(fdtv, arg);
else {
dev_info(fdtv->device, "unhandled CA message 0x%08x\n",
fdtv->ca_last_command);
- err = -EFAULT;
+ err = -EACCES;
}
}
fdtv->ca_last_command = 0;
@@ -141,7 +139,7 @@ static int fdtv_ca_pmt(struct firedtv *fdtv, void *arg)
data_length = msg->msg[3];
}
- return avc_ca_pmt(fdtv, &msg->msg[data_pos], data_length) ? -EFAULT : 0;
+ return avc_ca_pmt(fdtv, &msg->msg[data_pos], data_length);
}
static int fdtv_ca_send_msg(struct firedtv *fdtv, void *arg)
@@ -170,7 +168,7 @@ static int fdtv_ca_send_msg(struct firedtv *fdtv, void *arg)
default:
dev_err(fdtv->device, "unhandled CA message 0x%08x\n",
fdtv->ca_last_command);
- err = -EFAULT;
+ err = -EACCES;
}
return err;
}
@@ -184,7 +182,7 @@ static int fdtv_ca_ioctl(struct file *file, unsigned int cmd, void *arg)
switch (cmd) {
case CA_RESET:
- err = fdtv_ca_reset(fdtv);
+ err = avc_ca_reset(fdtv);
break;
case CA_GET_CAP:
err = fdtv_ca_get_caps(arg);