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Diffstat (limited to 'arch/avr32/kernel/cpu.c')
-rw-r--r--arch/avr32/kernel/cpu.c48
1 files changed, 26 insertions, 22 deletions
diff --git a/arch/avr32/kernel/cpu.c b/arch/avr32/kernel/cpu.c
index 2233be71e2e8..0341ae27c9ec 100644
--- a/arch/avr32/kernel/cpu.c
+++ b/arch/avr32/kernel/cpu.c
@@ -39,10 +39,12 @@ static ssize_t store_pc0event(struct device *dev,
size_t count)
{
unsigned long val;
- char *endp;
+ int ret;
- val = simple_strtoul(buf, &endp, 0);
- if (endp == buf || val > 0x3f)
+ ret = kstrtoul(buf, 0, &val);
+ if (ret)
+ return ret;
+ if (val > 0x3f)
return -EINVAL;
val = (val << 12) | (sysreg_read(PCCR) & 0xfffc0fff);
sysreg_write(PCCR, val);
@@ -61,11 +63,11 @@ static ssize_t store_pc0count(struct device *dev,
const char *buf, size_t count)
{
unsigned long val;
- char *endp;
+ int ret;
- val = simple_strtoul(buf, &endp, 0);
- if (endp == buf)
- return -EINVAL;
+ ret = kstrtoul(buf, 0, &val);
+ if (ret)
+ return ret;
sysreg_write(PCNT0, val);
return count;
@@ -84,10 +86,12 @@ static ssize_t store_pc1event(struct device *dev,
size_t count)
{
unsigned long val;
- char *endp;
+ int ret;
- val = simple_strtoul(buf, &endp, 0);
- if (endp == buf || val > 0x3f)
+ ret = kstrtoul(buf, 0, &val);
+ if (ret)
+ return ret;
+ if (val > 0x3f)
return -EINVAL;
val = (val << 18) | (sysreg_read(PCCR) & 0xff03ffff);
sysreg_write(PCCR, val);
@@ -106,11 +110,11 @@ static ssize_t store_pc1count(struct device *dev,
size_t count)
{
unsigned long val;
- char *endp;
+ int ret;
- val = simple_strtoul(buf, &endp, 0);
- if (endp == buf)
- return -EINVAL;
+ ret = kstrtoul(buf, 0, &val);
+ if (ret)
+ return ret;
sysreg_write(PCNT1, val);
return count;
@@ -129,11 +133,11 @@ static ssize_t store_pccycles(struct device *dev,
size_t count)
{
unsigned long val;
- char *endp;
+ int ret;
- val = simple_strtoul(buf, &endp, 0);
- if (endp == buf)
- return -EINVAL;
+ ret = kstrtoul(buf, 0, &val);
+ if (ret)
+ return ret;
sysreg_write(PCCNT, val);
return count;
@@ -152,11 +156,11 @@ static ssize_t store_pcenable(struct device *dev,
size_t count)
{
unsigned long pccr, val;
- char *endp;
+ int ret;
- val = simple_strtoul(buf, &endp, 0);
- if (endp == buf)
- return -EINVAL;
+ ret = kstrtoul(buf, 0, &val);
+ if (ret)
+ return ret;
if (val)
val = 1;