Input: elantech - fix firmware version check

commit 225c61aa upstream.

The check determining whether device should use 4- or 6-byte packets
was trying to compare firmware with 2.48, but was failing on majors
greater than 2. The new check ensures that versions like 4.1 are
checked properly.
Signed-off-by: Florian Ragwitz <rafl@debian.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/input/mouse/elantech.c

@@ -665,7 +665,8 @@ int elantech_init(struct psmouse *psmouse)
 	 * Assume every version greater than this is new EeePC style
 	 * hardware with 6 byte packets
 	 */
-	if (etd->fw_version_maj >= 0x02 && etd->fw_version_min >= 0x30) {
+	if ((etd->fw_version_maj == 0x02 && etd->fw_version_min >= 0x30) ||
+	    etd->fw_version_maj > 0x02) {
 		etd->hw_version = 2;
 		/* For now show extra debug information */
 		etd->debug = 1;