From 12952cdddb0465093c3bd869bc28c677dd78a53b Mon Sep 17 00:00:00 2001
From: Stephane Lee <stayfan@google.com>
Date: Mon, 13 Jan 2020 15:46:36 -0800
Subject: [PATCH] Fix ioctl FIONREAD call parameters to use int instead of
 size_t

Test: Ensure that calls to inotify_cb succeed; Ensure charger does not
crash

Change-Id: I9a7ca304057313c74ef02fd97223d0ed570c6206
---
 minui/events.cpp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/minui/events.cpp b/minui/events.cpp
index f331ed68..87f81122 100644
--- a/minui/events.cpp
+++ b/minui/events.cpp
@@ -90,9 +90,11 @@ static int inotify_cb(int fd, __unused uint32_t epevents) {
 
   // The inotify will put one or several complete events.
   // Should not read part of one event.
-  size_t event_len;
-  int ret = ioctl(fd, FIONREAD, &event_len);
+  int event_len_int;
+  int ret = ioctl(fd, FIONREAD, &event_len_int);
   if (ret != 0) return -1;
+  if (event_len_int < 0) return -1;
+  size_t event_len = event_len_int;
 
   std::unique_ptr<DIR, decltype(&closedir)> dir(opendir(INPUT_DEV_DIR), closedir);
   if (!dir) {