From 5189952238c965cbf76309f2c29b84ff2ec70b75 Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Wed, 29 Jun 2022 01:17:37 +0300 Subject: [PATCH] mfd: intel_soc_pmic_bxtwc: Don't shadow error codes in show()/store() kstrtox() along with regmap API can return different error codes based on circumstances. Don't shadow them when returning to the caller. While at it, remove rather confusing message from addr_store(). Signed-off-by: Andy Shevchenko Signed-off-by: Lee Jones Link: https://lore.kernel.org/r/20220628221747.33956-1-andriy.shevchenko@linux.intel.com --- drivers/mfd/intel_soc_pmic_bxtwc.c | 16 +++++++++------- 1 file changed, 9 insertions(+), 7 deletions(-) diff --git a/drivers/mfd/intel_soc_pmic_bxtwc.c b/drivers/mfd/intel_soc_pmic_bxtwc.c index bc069c4daa60..bdc3153ee890 100644 --- a/drivers/mfd/intel_soc_pmic_bxtwc.c +++ b/drivers/mfd/intel_soc_pmic_bxtwc.c @@ -339,10 +339,12 @@ static ssize_t addr_show(struct device *dev, static ssize_t addr_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - if (kstrtoul(buf, 0, &bxtwc_reg_addr)) { - dev_err(dev, "Invalid register address\n"); - return -EINVAL; - } + int ret; + + ret = kstrtoul(buf, 0, &bxtwc_reg_addr); + if (ret) + return ret; + return (ssize_t)count; } @@ -354,9 +356,9 @@ static ssize_t val_show(struct device *dev, struct intel_soc_pmic *pmic = dev_get_drvdata(dev); ret = regmap_read(pmic->regmap, bxtwc_reg_addr, &val); - if (ret < 0) { + if (ret) { dev_err(dev, "Failed to read 0x%lx\n", bxtwc_reg_addr); - return -EIO; + return ret; } return sprintf(buf, "0x%02x\n", val); @@ -377,7 +379,7 @@ static ssize_t val_store(struct device *dev, if (ret) { dev_err(dev, "Failed to write value 0x%02x to address 0x%lx", val, bxtwc_reg_addr); - return -EIO; + return ret; } return count; }