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-rw-r--r--fs/binfmt_misc.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/binfmt_misc.c b/fs/binfmt_misc.c
index c96b855d2a5e..fd8beb9657a2 100644
--- a/fs/binfmt_misc.c
+++ b/fs/binfmt_misc.c
@@ -411,12 +411,12 @@ static int parse_command(const char __user *buffer, size_t count)
{
char s[4];
- if (!count)
- return 0;
if (count > 3)
return -EINVAL;
if (copy_from_user(s, buffer, count))
return -EFAULT;
+ if (!count)
+ return 0;
if (s[count-1] == '\n')
count--;
if (count == 1 && s[0] == '0')