[PATCH 10/11] i2c: imx-lpi2c: fix type char overflow issue when calculating the clock cycle
From: Clark Wang <xiaoning.wang@nxp.com>
Date: 2021-03-17 06:55:27
Also in:
linux-i2c, lkml
Subsystem:
freescale imx lpi2c driver, i2c subsystem, i2c subsystem host drivers, the rest · Maintainers:
Dong Aisheng, Andi Shyti, Linus Torvalds
Claim clkhi and clklo as integer type to avoid possible calculation errors caused by data overflow. Reviewed-by: Fugang Duan <redacted> Signed-off-by: Clark Wang <xiaoning.wang@nxp.com> --- drivers/i2c/busses/i2c-imx-lpi2c.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/i2c/busses/i2c-imx-lpi2c.c b/drivers/i2c/busses/i2c-imx-lpi2c.c
index 5dbe85126f24..1e26672d47bf 100644
--- a/drivers/i2c/busses/i2c-imx-lpi2c.c
+++ b/drivers/i2c/busses/i2c-imx-lpi2c.c@@ -213,8 +213,8 @@ static void lpi2c_imx_stop(struct lpi2c_imx_struct *lpi2c_imx) CLKHI = I2C_CLK_RATIO * clk_cycle */ 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;
--
2.25.1
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