diff options
| author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-03-25 03:53:42 -0300 |
|---|---|---|
| committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-03-25 03:53:42 -0300 |
| commit | 03dd4cb26d967f9588437b0fc9cc0e8353322bb7 (patch) | |
| tree | fa581f6dc1c0596391690d1f67eceef3af8246dc /lib/seq_buf.c | |
| parent | d4e493caf788ef44982e131ff9c786546904d934 (diff) | |
Linux-libre 4.5-gnu
Diffstat (limited to 'lib/seq_buf.c')
| -rw-r--r-- | lib/seq_buf.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/lib/seq_buf.c b/lib/seq_buf.c index 5c94e1012..cb18469e1 100644 --- a/lib/seq_buf.c +++ b/lib/seq_buf.c @@ -306,10 +306,12 @@ int seq_buf_to_user(struct seq_buf *s, char __user *ubuf, int cnt) if (!cnt) return 0; - if (s->len <= s->readpos) + len = seq_buf_used(s); + + if (len <= s->readpos) return -EBUSY; - len = seq_buf_used(s) - s->readpos; + len -= s->readpos; if (cnt > len) cnt = len; ret = copy_to_user(ubuf, s->buffer + s->readpos, cnt); |