Input: synaptics - fix crash in synaptics_module_init()

'struct dmi_system_id' arrays must always have a terminator to keep
dmi_check_system() from looking at data (and possibly crashing) it
isn't supposed to look at.

The issue went unnoticed until ef8313bb1a,
but was introduced about a year earlier with
7705d548cb (which also similarly changed
lifebook.c, but the problem there got eliminated shortly afterwards).

The first hunk therefore is a stable candidate back to 2.6.33, while
the full change is needed only on 2.6.38.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Cc: stable@kernel.org
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

drivers/input/mouse/synaptics.c

@@ -836,8 +836,8 @@ static const struct dmi_system_id __initconst toshiba_dmi_table[] = {
 		},
 
 	},
-	{ }
 #endif
+	{ }
 };
 
 static bool broken_olpc_ec;
@@ -851,8 +851,8 @@ static const struct dmi_system_id __initconst olpc_dmi_table[] = {
 			DMI_MATCH(DMI_PRODUCT_NAME, "XO"),
 		},
 	},
-	{ }
 #endif
+	{ }
 };
 
 void __init synaptics_module_init(void)