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Diffstat (limited to 'arch/arm/mach-omap2/mux.c')
-rw-r--r--arch/arm/mach-omap2/mux.c22
1 files changed, 6 insertions, 16 deletions
diff --git a/arch/arm/mach-omap2/mux.c b/arch/arm/mach-omap2/mux.c
index f62f7537d899..ac8a249779f2 100644
--- a/arch/arm/mach-omap2/mux.c
+++ b/arch/arm/mach-omap2/mux.c
@@ -681,29 +681,19 @@ static ssize_t omap_mux_dbg_signal_write(struct file *file,
const char __user *user_buf,
size_t count, loff_t *ppos)
{
- char buf[OMAP_MUX_MAX_ARG_CHAR];
struct seq_file *seqf;
struct omap_mux *m;
- unsigned long val;
- int buf_size, ret;
+ u16 val;
+ int ret;
struct omap_mux_partition *partition;
if (count > OMAP_MUX_MAX_ARG_CHAR)
return -EINVAL;
- memset(buf, 0, sizeof(buf));
- buf_size = min(count, sizeof(buf) - 1);
-
- if (copy_from_user(buf, user_buf, buf_size))
- return -EFAULT;
-
- ret = strict_strtoul(buf, 0x10, &val);
+ ret = kstrtou16_from_user(user_buf, count, 0x10, &val);
if (ret < 0)
return ret;
- if (val > 0xffff)
- return -EINVAL;
-
seqf = file->private_data;
m = seqf->private;
@@ -711,7 +701,7 @@ static ssize_t omap_mux_dbg_signal_write(struct file *file,
if (!partition)
return -ENODEV;
- omap_mux_write(partition, (u16)val, m->reg_offset);
+ omap_mux_write(partition, val, m->reg_offset);
*ppos += count;
return count;
@@ -917,14 +907,14 @@ static void __init omap_mux_set_cmdline_signals(void)
while ((token = strsep(&next_opt, ",")) != NULL) {
char *keyval, *name;
- unsigned long val;
+ u16 val;
keyval = token;
name = strsep(&keyval, "=");
if (name) {
int res;
- res = strict_strtoul(keyval, 0x10, &val);
+ res = kstrtou16(keyval, 0x10, &val);
if (res < 0)
continue;