commit e9cc264619a31bc8733f6e2adfa55b78ec3beebc
author Dennis Kempin <denniskempin@chromium.org> Mon Jun 25 11:52:24 2012 -0700
committer Dennis Kempin <denniskempin@chromium.org> Mon Jun 25 11:52:24 2012 -0700
tree 8ad77827e04999d15465cd9cd2828ffa2317e714
parent 85a1444f4f5b815dab573bcaa05004878e77b885

Ported change I6e56456e2f47af79b94932498d1abb1b42cf8584

libevdev: fix EvdevProbeMTSlot()

MTSlotInfoPtr is already a pointer, get the size of what it points to,
and pass its value, not its address, to the ioctl.

BUG=chromium-os:31878
TEST=boot chromebook;  inspect /var/log/Xorg.0.log
    => No (EE) error messages related to EVIOCGMTSLOTS

Change-Id: I283d5ab3e3115c937b9888147c698eb26479ee06

src/libevdev.c

diff --git a/src/libevdev.c b/src/libevdev.c
index abffe93..877a4bf 100644
--- a/src/libevdev.c
+++ b/src/libevdev.c
@@ -211,9 +211,9 @@
 }
 
 int EvdevProbeMTSlot(EvdevPtr device, MTSlotInfoPtr req) {
-  if (ioctl(device->fd, EVIOCGMTSLOTS((sizeof(req))), &req) < 0) {
+  if (ioctl(device->fd, EVIOCGMTSLOTS((sizeof(*req))), req) < 0) {
       LOG_ERROR(device, "ioctl EVIOCGMTSLOTS(req.code=%d) failed: %s\n",
-          req->code, strerror(errno));
+                req->code, strerror(errno));
       return !Success;
   } else {
       return Success;