libusbhost: Fix issue of multiple inotify event at same time.
libusbhost can handle multiple inotify events at same time on Kit kat.
In original implementation, the function-level ret is assigned with
length of read and used for while loop.
if want to add a new watch for subdirectory,inotify_add_watch will
update the function-level ret with watch descriptor.
It impact on while loop to do exit.
Add local result to avoid it.
Change-Id: I101041ccfd54eaac14969a45e90ab2e49bdff578
Signed-off-by: Bo Huang <bo.b.huang@intel.com>
diff --git a/libusbhost/usbhost.c b/libusbhost/usbhost.c
index 8be393e..cd8000a 100644
--- a/libusbhost/usbhost.c
+++ b/libusbhost/usbhost.c
@@ -263,11 +263,12 @@
D("%s subdirectory %s: index: %d\n", (event->mask & IN_CREATE) ?
"new" : "gone", path, i);
if (i > 0 && i < MAX_USBFS_WD_COUNT) {
+ int local_ret = 0;
if (event->mask & IN_CREATE) {
- ret = inotify_add_watch(context->fd, path,
+ local_ret = inotify_add_watch(context->fd, path,
IN_CREATE | IN_DELETE);
- if (ret >= 0)
- context->wds[i] = ret;
+ if (local_ret >= 0)
+ context->wds[i] = local_ret;
done = find_existing_devices_bus(path, context->cb_added,
context->data);
} else if (event->mask & IN_DELETE) {