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path: root/drivers/mfd/ab3100-core.c
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Diffstat (limited to 'drivers/mfd/ab3100-core.c')
-rw-r--r--drivers/mfd/ab3100-core.c28
1 files changed, 10 insertions, 18 deletions
diff --git a/drivers/mfd/ab3100-core.c b/drivers/mfd/ab3100-core.c
index a9bb140bc86b..ddc669d19530 100644
--- a/drivers/mfd/ab3100-core.c
+++ b/drivers/mfd/ab3100-core.c
@@ -491,7 +491,7 @@ static ssize_t ab3100_get_set_reg(struct file *file,
char buf[32];
ssize_t buf_size;
int regp;
- unsigned long user_reg;
+ u8 user_reg;
int err;
int i = 0;
@@ -514,34 +514,29 @@ static ssize_t ab3100_get_set_reg(struct file *file,
/*
* Advance pointer to end of string then terminate
* the register string. This is needed to satisfy
- * the strict_strtoul() function.
+ * the kstrtou8() function.
*/
while ((i < buf_size) && (buf[i] != ' '))
i++;
buf[i] = '\0';
- err = strict_strtoul(&buf[regp], 16, &user_reg);
+ err = kstrtou8(&buf[regp], 16, &user_reg);
if (err)
return err;
- if (user_reg > 0xff)
- return -EINVAL;
/* Either we read or we write a register here */
if (!priv->mode) {
/* Reading */
- u8 reg = (u8) user_reg;
u8 regvalue;
- ab3100_get_register_interruptible(ab3100, reg, &regvalue);
+ ab3100_get_register_interruptible(ab3100, user_reg, &regvalue);
dev_info(ab3100->dev,
"debug read AB3100 reg[0x%02x]: 0x%02x\n",
- reg, regvalue);
+ user_reg, regvalue);
} else {
int valp;
- unsigned long user_value;
- u8 reg = (u8) user_reg;
- u8 value;
+ u8 user_value;
u8 regvalue;
/*
@@ -557,20 +552,17 @@ static ssize_t ab3100_get_set_reg(struct file *file,
i++;
buf[i] = '\0';
- err = strict_strtoul(&buf[valp], 16, &user_value);
+ err = kstrtou8(&buf[valp], 16, &user_value);
if (err)
return err;
- if (user_reg > 0xff)
- return -EINVAL;
- value = (u8) user_value;
- ab3100_set_register_interruptible(ab3100, reg, value);
- ab3100_get_register_interruptible(ab3100, reg, &regvalue);
+ ab3100_set_register_interruptible(ab3100, user_reg, user_value);
+ ab3100_get_register_interruptible(ab3100, user_reg, &regvalue);
dev_info(ab3100->dev,
"debug write reg[0x%02x] with 0x%02x, "
"after readback: 0x%02x\n",
- reg, value, regvalue);
+ user_reg, user_value, regvalue);
}
return buf_size;
}