V4L/DVB (5449): M920x: add error messages for debugging purposes
Signed-off-by: Pierre Willenbrock <pierre@pirsoft.dnsalias.org>
Signed-off-by: Aapo Tahkola <aet@rasterburn.org>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
diff --git a/drivers/media/dvb/dvb-usb/m920x.c b/drivers/media/dvb/dvb-usb/m920x.c
index 485ea5c..fd6583b 100644
--- a/drivers/media/dvb/dvb-usb/m920x.c
+++ b/drivers/media/dvb/dvb-usb/m920x.c
@@ -47,11 +47,15 @@
ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
request, USB_TYPE_VENDOR | USB_DIR_IN,
value, index, data, size, 2000);
- if (ret < 0)
+ if (ret < 0) {
+ printk(KERN_INFO "m920x_read = error: %d\n", ret);
return ret;
+ }
- if (ret != size)
+ if (ret != size) {
+ deb_rc("m920x_read = no data\n");
return -EIO;
+ }
return 0;
}
@@ -64,6 +68,7 @@
ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
request, USB_TYPE_VENDOR | USB_DIR_OUT,
value, index, NULL, 0, 2000);
+
return ret;
}
@@ -323,6 +328,7 @@
i += size;
}
if (i != fw->size) {
+ deb_rc("bad firmware file!\n");
ret = -EINVAL;
goto done;
}