[media] dvb_usb_lmedm04: don't crash if firmware is not loaded

There is a missing error handling when no firmware file found.

It seems that this is more of a problem with udev-182+.

However, so far udev-182 is only a problem on first ever plug.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Tested-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/media/dvb/dvb-usb/lmedm04.c b/drivers/media/dvb/dvb-usb/lmedm04.c
index 25d1031460f8..26ba5bc92c61 100644
--- a/drivers/media/dvb/dvb-usb/lmedm04.c
+++ b/drivers/media/dvb/dvb-usb/lmedm04.c
@@ -878,6 +878,10 @@ static int lme_firmware_switch(struct usb_device *udev, int cold)
                 fw_lme = fw_c_rs2000;
                 ret = request_firmware(&fw, fw_lme, &udev->dev);
                 dvb_usb_lme2510_firmware = TUNER_RS2000;
+                if (ret == 0)
+                        break;
+                info("FRM No Firmware Found - please install");
+                cold_fw = 0;
                 break;
         default:
                 fw_lme = fw_c_s7395;