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Commit 2c76c3af authored by Clark Wang's avatar Clark Wang Committed by Greg Kroah-Hartman
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i2c: imx-lpi2c: fix type char overflow issue when calculating the clock cycle 



[ Upstream commit e69b9bc170c6d93ee375a5cbfd15f74c0fb59bdd ]

Claim clkhi and clklo as integer type to avoid possible calculation
errors caused by data overflow.

Fixes: a55fa9d0 ("i2c: imx-lpi2c: add low power i2c bus driver")
Signed-off-by: default avatarClark Wang <xiaoning.wang@nxp.com>
Signed-off-by: default avatarCarlos Song <carlos.song@nxp.com>
Reviewed-by: default avatarAndi Shyti <andi.shyti@kernel.org>
Signed-off-by: default avatarWolfram Sang <wsa@kernel.org>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent 6f639f6a

drivers/i2c/busses/i2c-imx-lpi2c.c

+2 −2
Original line number Diff line number Diff line
@@ -206,8 +206,8 @@ static void lpi2c_imx_stop(struct lpi2c_imx_struct *lpi2c_imx) 
/* CLKLO = I2C_CLK_RATIO * CLKHI, SETHOLD = CLKHI, DATAVD = CLKHI/2 */

static int lpi2c_imx_config(struct lpi2c_imx_struct *lpi2c_imx)

{

	u8 prescale, filt, sethold, clkhi, clklo, datavd;

	unsigned int clk_rate, clk_cycle;

	u8 prescale, filt, sethold, datavd;

	unsigned int clk_rate, clk_cycle, clkhi, clklo;

	enum lpi2c_imx_pincfg pincfg;

	unsigned int temp;