After closing the fd, reset it to -1.

A DeviceOff() followed by DeviceClose() (which calls DeviceOff()) would try
to close the fd twice, in addition to calling various hooks.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Julien Cristau <jcristau@debian.org>
(cherry picked from commit a07fe65031ffa7e8d88898d763bdbc88899fb1e4)

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>

1 files changed, 1 insertions, 0 deletions

diff --git a/src/synaptics.c b/src/synaptics.c
index 6cbdcb8..9997674 100644
--- a/src/synaptics.c
+++ b/src/synaptics.c
@@ -801,6 +801,7 @@ DeviceOff(DeviceIntPtr dev)
 	    priv->comm.buffer = NULL;
 	}
 	xf86CloseSerial(local->fd);
+	local->fd = -1;
     }
     dev->public.on = FALSE;
     return Success;