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| author | David S. Miller <davem@davemloft.net> | 2016-01-13 00:21:27 -0500 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-01-13 00:21:27 -0500 |
| commit | ddb5388ffd0ad75d07e7b78181a0b579824ba6f0 (patch) | |
| tree | be1e2bd103c69d7bbace3fffd97bc3d714bbc3d7 /lib/seq_buf.c | |
| parent | ccdf6ce6a8dba374668ae9b4d763e19903611c38 (diff) | |
| parent | 67990608c8b95d2b8ccc29932376ae73d5818727 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux
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 5c94e1012a91..cb18469e1f49 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); |