Commit 718dccb4 authored by Sven Peter's avatar Sven Peter Committed by Greg Kroah-Hartman
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usb: typec: tipd: Don't read/write more bytes than required 



tps6598x_block_read/write always read 65 bytes of data even when much
less is required when I2C_FUNC_I2C is used. Reduce this to the correct
number.

Reviewed-by: default avatarHeikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: default avatarSven Peter <sven@svenpeter.dev>
Link: https://lore.kernel.org/r/20210914140235.65955-1-sven@svenpeter.dev


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 14651496

drivers/usb/typec/tipd/core.c

+2 −2
Original line number Diff line number Diff line
@@ -123,7 +123,7 @@ tps6598x_block_read(struct tps6598x *tps, u8 reg, void *val, size_t len) 
	if (!tps->i2c_protocol)

		return regmap_raw_read(tps->regmap, reg, val, len);



	ret = regmap_raw_read(tps->regmap, reg, data, sizeof(data));

	ret = regmap_raw_read(tps->regmap, reg, data, len + 1);

	if (ret)

		return ret;
@@ -145,7 +145,7 @@ static int tps6598x_block_write(struct tps6598x *tps, u8 reg, 
	data[0] = len;

	memcpy(&data[1], val, len);



	return regmap_raw_write(tps->regmap, reg, data, sizeof(data));

	return regmap_raw_write(tps->regmap, reg, data, len + 1);

}



static inline int tps6598x_read16(struct tps6598x *tps, u8 reg, u16 *val)