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| author | John Stultz <john.stultz@linaro.org> | 2013-05-15 12:42:15 -0700 |
|---|---|---|
| committer | John Stultz <john.stultz@linaro.org> | 2013-05-15 12:42:15 -0700 |
| commit | 15a6affec4449b54afba15ab7edbad0cac2736d3 (patch) | |
| tree | f2fa815f74be0b56acd05e62113600a7113d48a9 /drivers/mtd/devices/elm.c | |
| parent | cd432fc233f4e7aba43b4fe499a4445f0f6ee1c6 (diff) | |
| parent | f722406faae2d073cc1d01063d1123c35425939e (diff) | |
Merge tag 'v3.10-rc1' into linaro-android-3.10-experimental-mergetracking-linaro-android-3.10-llct-20130518.0
Linux 3.10-rc1
Diffstat (limited to 'drivers/mtd/devices/elm.c')
| -rw-r--r-- | drivers/mtd/devices/elm.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/mtd/devices/elm.c b/drivers/mtd/devices/elm.c index 2ec5da9ee248..dccef9fdc1f2 100644 --- a/drivers/mtd/devices/elm.c +++ b/drivers/mtd/devices/elm.c @@ -81,14 +81,21 @@ static u32 elm_read_reg(struct elm_info *info, int offset) * @dev: ELM device * @bch_type: Type of BCH ecc */ -void elm_config(struct device *dev, enum bch_ecc bch_type) +int elm_config(struct device *dev, enum bch_ecc bch_type) { u32 reg_val; struct elm_info *info = dev_get_drvdata(dev); + if (!info) { + dev_err(dev, "Unable to configure elm - device not probed?\n"); + return -ENODEV; + } + reg_val = (bch_type & ECC_BCH_LEVEL_MASK) | (ELM_ECC_SIZE << 16); elm_write_reg(info, ELM_LOCATION_CONFIG, reg_val); info->bch_type = bch_type; + + return 0; } EXPORT_SYMBOL(elm_config); |