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;