Commit c6caeeb1 authored by Steven Rostedt's avatar Steven Rostedt Committed by Thomas Gleixner
Browse files

ftrace: replace simple_strtoul with strict_strtoul



Andrew Morton suggested using strict_strtoul over simple_strtoul.
This patch replaces them in ftrace.
Signed-off-by: default avatarSteven Rostedt <srostedt@redhat.com>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
parent cffae437
......@@ -92,9 +92,16 @@ void trace_wake_up(void)
static int __init set_nr_entries(char *str)
{
unsigned long nr_entries;
int ret;
if (!str)
return 0;
trace_nr_entries = simple_strtoul(str, &str, 0);
ret = strict_strtoul(str, 0, &nr_entries);
/* nr_entries can not be zero */
if (ret < 0 || nr_entries == 0)
return 0;
trace_nr_entries = nr_entries;
return 1;
}
__setup("trace_entries=", set_nr_entries);
......@@ -1995,8 +2002,9 @@ tracing_ctrl_write(struct file *filp, const char __user *ubuf,
size_t cnt, loff_t *ppos)
{
struct trace_array *tr = filp->private_data;
long val;
char buf[64];
long val;
int ret;
if (cnt >= sizeof(buf))
return -EINVAL;
......@@ -2006,7 +2014,9 @@ tracing_ctrl_write(struct file *filp, const char __user *ubuf,
buf[cnt] = 0;
val = simple_strtoul(buf, NULL, 10);
ret = strict_strtoul(buf, 10, &val);
if (ret < 0)
return ret;
val = !!val;
......@@ -2110,8 +2120,9 @@ tracing_max_lat_write(struct file *filp, const char __user *ubuf,
size_t cnt, loff_t *ppos)
{
long *ptr = filp->private_data;
long val;
char buf[64];
long val;
int ret;
if (cnt >= sizeof(buf))
return -EINVAL;
......@@ -2121,7 +2132,9 @@ tracing_max_lat_write(struct file *filp, const char __user *ubuf,
buf[cnt] = 0;
val = simple_strtoul(buf, NULL, 10);
ret = strict_strtoul(buf, 10, &val);
if (ret < 0)
return ret;
*ptr = val * 1000;
......@@ -2376,6 +2389,7 @@ tracing_entries_write(struct file *filp, const char __user *ubuf,
{
unsigned long val;
char buf[64];
int ret;
if (cnt >= sizeof(buf))
return -EINVAL;
......@@ -2385,7 +2399,9 @@ tracing_entries_write(struct file *filp, const char __user *ubuf,
buf[cnt] = 0;
val = simple_strtoul(buf, NULL, 10);
ret = strict_strtoul(buf, 10, &val);
if (ret < 0)
return ret;
/* must have at least 1 entry */
if (!val)
......
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