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| author | Vadim Pasternak <vadimp@mellanox.com> | 2019-05-16 17:15:41 +0000 |
|---|---|---|
| committer | Wolfram Sang <wsa@the-dreams.de> | 2019-05-27 21:24:58 +0200 |
| commit | 13067ef73f337336e3149f5bb9f3fd05fe7f87a0 (patch) | |
| tree | de1cba3da186121bccf50b402c3840e784a50dbd /drivers/i2c/busses | |
| parent | a0692f0eef91354b62c2b4c94954536536be5425 (diff) | |
| download | linux-13067ef73f337336e3149f5bb9f3fd05fe7f87a0.tar.gz linux-13067ef73f337336e3149f5bb9f3fd05fe7f87a0.tar.bz2 linux-13067ef73f337336e3149f5bb9f3fd05fe7f87a0.zip | |
i2c: mlxcpld: Fix wrong initialization order in probe
Fix wrong order in probing routine initialization - field `base_addr'
is used before it's initialized. Move assignment of 'priv->base_addr`
to the beginning, prior the call to mlxcpld_i2c_read_comm().
Wrong order caused the first read of capability register to be executed
at wrong offset 0x0 instead of 0x2000. By chance it was a "good
garbage" at 0x0 offset.
Fixes: 313ce648b5a4 ("i2c: mlxcpld: Add support for extended transaction length for i2c-mlxcpld")
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Cc: stable@kernel.org
Diffstat (limited to 'drivers/i2c/busses')
| -rw-r--r-- | drivers/i2c/busses/i2c-mlxcpld.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/i2c/busses/i2c-mlxcpld.c b/drivers/i2c/busses/i2c-mlxcpld.c index 745ed43a22d6..2fd717d8dd30 100644 --- a/drivers/i2c/busses/i2c-mlxcpld.c +++ b/drivers/i2c/busses/i2c-mlxcpld.c @@ -503,6 +503,7 @@ static int mlxcpld_i2c_probe(struct platform_device *pdev) platform_set_drvdata(pdev, priv); priv->dev = &pdev->dev; + priv->base_addr = MLXPLAT_CPLD_LPC_I2C_BASE_ADDR; /* Register with i2c layer */ mlxcpld_i2c_adapter.timeout = usecs_to_jiffies(MLXCPLD_I2C_XFER_TO); @@ -518,7 +519,6 @@ static int mlxcpld_i2c_probe(struct platform_device *pdev) mlxcpld_i2c_adapter.nr = pdev->id; priv->adap = mlxcpld_i2c_adapter; priv->adap.dev.parent = &pdev->dev; - priv->base_addr = MLXPLAT_CPLD_LPC_I2C_BASE_ADDR; i2c_set_adapdata(&priv->adap, priv); err = i2c_add_numbered_adapter(&priv->adap); |