diff --git a/drivers/media/dvb-frontends/dib3000mb.c b/drivers/media/dvb-frontends/dib3000mb.c
index a6c2fc4586eb..4816a8c6a6f3 100644
--- a/drivers/media/dvb-frontends/dib3000mb.c
+++ b/drivers/media/dvb-frontends/dib3000mb.c
@@ -50,15 +50,17 @@ MODULE_PARM_DESC(debug, "set debugging level (1=info,2=xfer,4=setfe,8=getfe (|-a
 
 static int dib3000_read_reg(struct dib3000_state *state, u16 reg)
 {
+	int ret;
 	u8 wb[] = { ((reg >> 8) | 0x80) & 0xff, reg & 0xff };
-	u8 rb[2];
+	u8 rb[2] = { 0, 0 };
 	struct i2c_msg msg[] = {
 		{ .addr = state->config.demod_address, .flags = 0,        .buf = wb, .len = 2 },
 		{ .addr = state->config.demod_address, .flags = I2C_M_RD, .buf = rb, .len = 2 },
 	};
 
-	if (i2c_transfer(state->i2c, msg, 2) != 2)
-		deb_i2c("i2c read error\n");
+	ret = i2c_transfer(state->i2c, msg, 2);
+	if (ret != 2)
+		deb_i2c("i2c read error (errno: %d)\n", -ret);
 
 	deb_i2c("reading i2c bus (reg: %5d 0x%04x, val: %5d 0x%04x)\n",reg,reg,
 			(rb[0] << 8) | rb[1],(rb[0] << 8) | rb[1]);