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authorFabio Estevam <fabio.estevam@freescale.com>2013-12-04 20:21:37 -0200
committerWolfram Sang <wsa@the-dreams.de>2013-12-12 22:48:22 +0100
commite5bf216a945e7292f8718276372d2b41486bed26 (patch)
tree69d106bf305787fe3aa7c9cbf70347f54c6fe1a3
parent2212a8529eb06c559256f0cee41c1f14890d54d3 (diff)
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>
-rw-r--r--drivers/i2c/busses/i2c-imx.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/i2c/busses/i2c-imx.c b/drivers/i2c/busses/i2c-imx.c
index 1d7efa3169cd..d0cfbb4cb964 100644
--- a/drivers/i2c/busses/i2c-imx.c
+++ b/drivers/i2c/busses/i2c-imx.c
@@ -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);