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i2c: imx: Check the return value from clk_prepare_enable() 

clk_prepare_enable() may fail, so let's check its return value and propagate it
in the case of error.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
hifive-unleashed-5.1
Fabio Estevam 2013-12-04 20:21:37 -02:00 committed by Wolfram Sang
parent 2212a8529e
commit e5bf216a94
1 changed files with 3 additions and 1 deletions
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4
drivers/i2c/busses/i2c-imx.c
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@ -312,7 +312,9 @@ static int i2c_imx_start(struct imx_i2c_struct *i2c_imx)
dev_dbg(&i2c_imx->adapter.dev, "<%s>\n", __func__);
clk_prepare_enable(i2c_imx->clk);
result = clk_prepare_enable(i2c_imx->clk);
if (result)
return result;
imx_i2c_write_reg(i2c_imx->ifdr, i2c_imx, IMX_I2C_IFDR);
/* Enable I2C controller */
imx_i2c_write_reg(i2c_imx->hwdata->i2sr_clr_opcode, i2c_imx, IMX_I2C_I2SR);