mtdev_get: return number of retrieved events if error occurs

Otherwise, we pull events, but return -1. We should send the events we
were able to retrieve for now.

Signed-off-by: Chase Douglas <chase.douglas@canonical.com>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>

1 files changed, 2 insertions, 4 deletions

diff --git a/src/iobuf.c b/src/iobuf.c
index 85a9f19..b58fdf6 100644
--- a/src/iobuf.c
+++ b/src/iobuf.c
@@ -76,10 +76,8 @@ int mtdev_get(struct mtdev *dev, int fd, struct input_event* ev, int ev_max)
         while (count < ev_max) {
                 while (mtdev_empty(dev)) {
                         ret = mtdev_fetch_event(dev, fd, &kev);
-                        if (ret < 0)
-                                return ret;
-                        if (ret == 0)
-                                return count;
+                        if (ret <= 0)
+                                return count > 0 ? count : ret;
                         mtdev_put_event(dev, &kev);
                 }
                 mtdev_get_event(dev, &ev[count++]);