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authorAndreas Oberritter <obi@linuxtv.org>2011-05-08 23:03:34 (GMT)
committerMauro Carvalho Chehab <mchehab@redhat.com>2011-05-09 03:47:20 (GMT)
commitf9b51477fe540fb4c65a05027fdd6f2ecce4db3b (patch)
tree0087050a09fdb7ad214864448d6bf9ede20d51d1
parent966825c2a416a7ca3950e35e60fa8720f1251e37 (diff)
[media] DVB: return meaningful error codes in dvb_frontendstaging/for_v2.6.40
- Return values should not be ORed. Abort early instead. - Return -EINVAL instead of -1. Signed-off-by: Andreas Oberritter <obi@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
-rw-r--r--drivers/media/dvb/dvb-core/dvb_frontend.c28
1 files changed, 16 insertions, 12 deletions
diff --git a/drivers/media/dvb/dvb-core/dvb_frontend.c b/drivers/media/dvb/dvb-core/dvb_frontend.c
index 31e2c0d..95c3fec 100644
--- a/drivers/media/dvb/dvb-core/dvb_frontend.c
+++ b/drivers/media/dvb/dvb-core/dvb_frontend.c
@@ -1325,12 +1325,12 @@ static int dtv_property_process_get(struct dvb_frontend *fe,
tvp->u.data = fe->dtv_property_cache.isdbs_ts_id;
break;
default:
- r = -1;
+ return -EINVAL;
}
dtv_property_dump(tvp);
- return r;
+ return 0;
}
static int dtv_property_process_set(struct dvb_frontend *fe,
@@ -1342,11 +1342,11 @@ static int dtv_property_process_set(struct dvb_frontend *fe,
dtv_property_dump(tvp);
/* Allow the frontend to validate incoming properties */
- if (fe->ops.set_property)
+ if (fe->ops.set_property) {
r = fe->ops.set_property(fe, tvp);
-
- if (r < 0)
- return r;
+ if (r < 0)
+ return r;
+ }
switch(tvp->cmd) {
case DTV_CLEAR:
@@ -1365,7 +1365,7 @@ static int dtv_property_process_set(struct dvb_frontend *fe,
dprintk("%s() Finalised property cache\n", __func__);
dtv_property_cache_submit(fe);
- r |= dvb_frontend_ioctl_legacy(file, FE_SET_FRONTEND,
+ r = dvb_frontend_ioctl_legacy(file, FE_SET_FRONTEND,
&fepriv->parameters);
break;
case DTV_FREQUENCY:
@@ -1480,7 +1480,7 @@ static int dtv_property_process_set(struct dvb_frontend *fe,
fe->dtv_property_cache.isdbs_ts_id = tvp->u.data;
break;
default:
- r = -1;
+ return -EINVAL;
}
return r;
@@ -1554,8 +1554,10 @@ static int dvb_frontend_ioctl_properties(struct file *file,
}
for (i = 0; i < tvps->num; i++) {
- (tvp + i)->result = dtv_property_process_set(fe, tvp + i, file);
- err |= (tvp + i)->result;
+ err = dtv_property_process_set(fe, tvp + i, file);
+ if (err < 0)
+ goto out;
+ (tvp + i)->result = err;
}
if(fe->dtv_property_cache.state == DTV_TUNE)
@@ -1586,8 +1588,10 @@ static int dvb_frontend_ioctl_properties(struct file *file,
}
for (i = 0; i < tvps->num; i++) {
- (tvp + i)->result = dtv_property_process_get(fe, tvp + i, file);
- err |= (tvp + i)->result;
+ err = dtv_property_process_get(fe, tvp + i, file);
+ if (err < 0)
+ goto out;
+ (tvp + i)->result = err;
}
if (copy_to_user(tvps->props, tvp, tvps->num * sizeof(struct dtv_property))) {

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