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-rw-r--r--drivers/input/mouse/alps.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/input/mouse/alps.c b/drivers/input/mouse/alps.c
index 62ffea00902a..34700eda0429 100644
--- a/drivers/input/mouse/alps.c
+++ b/drivers/input/mouse/alps.c
@@ -2876,7 +2876,7 @@ static bool alps_is_cs19_trackpoint(struct psmouse *psmouse)
* trackpoint-only devices have their variant_ids equal
* TP_VARIANT_ALPS and their firmware_ids are in 0x20~0x2f range.
*/
- return param[0] == TP_VARIANT_ALPS && (param[1] & 0x20);
+ return param[0] == TP_VARIANT_ALPS && ((param[1] & 0xf0) == 0x20);
}
static int alps_identify(struct psmouse *psmouse, struct alps_data *priv)