1 files changed, 3 insertions, 14 deletions

diff --git a/fs/binfmt_misc.c b/fs/binfmt_misc.c
index e6f57990b121..72d0b412c376 100644
--- a/fs/binfmt_misc.c
+++ b/fs/binfmt_misc.c
@@ -675,19 +675,8 @@ static ssize_t
 bm_status_read(struct file *file, char __user *buf, size_t nbytes, loff_t *ppos)
 {
         char *s = enabled ? "enabled" : "disabled";
-        int len = strlen(s);
-        loff_t pos = *ppos;
 
-        if (pos < 0)
-                return -EINVAL;
-        if (pos >= len)
-                return 0;
-        if (len < pos + nbytes)
-                nbytes = len - pos;
-        if (copy_to_user(buf, s + pos, nbytes))
-                return -EFAULT;
-        *ppos = pos + nbytes;
-        return nbytes;
+        return simple_read_from_buffer(buf, nbytes, ppos, s, strlen(s));
 }
 
 static ssize_t bm_status_write(struct file * file, const char __user * buffer,
@@ -727,8 +716,8 @@ static const struct super_operations s_ops = {
 static int bm_fill_super(struct super_block * sb, void * data, int silent)
 {
         static struct tree_descr bm_files[] = {
-                [1] = {"status", &bm_status_operations, S_IWUSR|S_IRUGO},
-                [2] = {"register", &bm_register_operations, S_IWUSR},
+                [2] = {"status", &bm_status_operations, S_IWUSR|S_IRUGO},
+                [3] = {"register", &bm_register_operations, S_IWUSR},
                 /* last one */ {""}
         };
         int err = simple_fill_super(sb, 0x42494e4d, bm_files);