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Commit c188637d authored by Antti Palosaari's avatar Antti Palosaari Committed by Mauro Carvalho Chehab
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[media] rtl2830: prevent hw access when sleeping 



to prevent I/O errors...

Signed-off-by: default avatarAntti Palosaari <crope@iki.fi>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent 631a2b61

drivers/media/dvb/frontends/rtl2830.c

+12 −0
Original line number Diff line number Diff line
@@ -381,6 +381,9 @@ static int rtl2830_get_frontend(struct dvb_frontend *fe) 
	int ret;

	u8 buf[3];



	if (priv->sleeping)

		return 0;



	ret = rtl2830_rd_regs(priv, 0x33c, buf, 2);

	if (ret)

		goto err;
@@ -525,6 +528,9 @@ static int rtl2830_read_snr(struct dvb_frontend *fe, u16 *snr) 
		{ 92888734, 92888734, 95487525, 99770748 },

	};



	if (priv->sleeping)

		return 0;



	/* reports SNR in resolution of 0.1 dB */



	ret = rtl2830_rd_reg(priv, 0x33c, &tmp);
@@ -563,6 +569,9 @@ static int rtl2830_read_ber(struct dvb_frontend *fe, u32 *ber) 
	int ret;

	u8 buf[2];



	if (priv->sleeping)

		return 0;



	ret = rtl2830_rd_regs(priv, 0x34e, buf, 2);

	if (ret)

		goto err;
@@ -588,6 +597,9 @@ static int rtl2830_read_signal_strength(struct dvb_frontend *fe, u16 *strength) 
	u8 buf[2];

	u16 if_agc_raw, if_agc;



	if (priv->sleeping)

		return 0;



	ret = rtl2830_rd_regs(priv, 0x359, buf, 2);

	if (ret)

		goto err;