nfsd4.1: fix session memory use calculation

[safe/jmp/linux-2.6] / fs / libfs.c

diff --git a/fs/libfs.c b/fs/libfs.c
index 662a28e..219576c 100644 (file)
--- a/fs/libfs.c
+++ b/fs/libfs.c
@@ -739,10 +739,11 @@ ssize_t simple_attr_write(struct file *file, const char __user *buf,
        if (copy_from_user(attr->set_buf, buf, size))
                goto out;
 
-       ret = len; /* claim we got the whole input */
        attr->set_buf[size] = '\0';
        val = simple_strtol(attr->set_buf, NULL, 0);
-       attr->set(attr->data, val);
+       ret = attr->set(attr->data, val);
+       if (ret == 0)
+               ret = len; /* on success, claim we got the whole input */
 out:
        mutex_unlock(&attr->mutex);
        return ret;