V4L/DVB (9071): S2API: Implement result codes for individual commands
This allows application developers to determine which particular
command in a sequence is invalid, or failing with error.
Signed-off-by: Steven Toth <stoth@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/dvb/dvb-core/dvb_frontend.c b/drivers/media/dvb/dvb-core/dvb_frontend.c
index 7da2537..0ef9c2a 100644
--- a/drivers/media/dvb/dvb-core/dvb_frontend.c
+++ b/drivers/media/dvb/dvb-core/dvb_frontend.c
@@ -1262,8 +1262,10 @@
goto out;
}
- for (i = 0; i < tvps->num; i++)
- err |= dtv_property_process_set(fe, tvp + i, inode, file);
+ for (i = 0; i < tvps->num; i++) {
+ (tvp + i)->result = dtv_property_process_set(fe, tvp + i, inode, file);
+ err |= (tvp + i)->result;
+ }
if(fe->dtv_property_cache.state == DTV_TUNE) {
printk("%s() Property cache is full, tuning\n", __FUNCTION__);
@@ -1295,8 +1297,10 @@
goto out;
}
- for (i = 0; i < tvps->num; i++)
- err |= dtv_property_process_get(fe, tvp + i, inode, file);
+ for (i = 0; i < tvps->num; i++) {
+ (tvp + i)->result = dtv_property_process_get(fe, tvp + i, inode, file);
+ err |= (tvp + i)->result;
+ }
if (copy_to_user(tvps->props, tvp, tvps->num * sizeof(struct dtv_property))) {
err = -EFAULT;
diff --git a/include/linux/dvb/frontend.h b/include/linux/dvb/frontend.h
index 7c17c71..b561626 100644
--- a/include/linux/dvb/frontend.h
+++ b/include/linux/dvb/frontend.h
@@ -323,6 +323,7 @@
void *reserved2;
} buffer;
} u;
+ int result;
} __attribute__ ((packed));
/* No more than 16 properties during any given ioctl */