[PATCH 4.19 23/38] Input: atmel_mxt_ts - fix double free in mxt_read_info_block

[Greg Kroah-Hartman]

From: José Expósito <jose.exposito89@xxxxxxxxx>

commit 12f247ab590a08856441efdbd351cf2cc8f60a2d upstream.

The "id_buf" buffer is stored in "data->raw_info_block" and freed by
"mxt_free_object_table" in case of error.

Return instead of jumping to avoid a double free.

Addresses-Coverity-ID: 1474582 ("Double free")
Fixes: 068bdb67ef74 ("Input: atmel_mxt_ts - fix the firmware update")
Signed-off-by: José Expósito <jose.exposito89@xxxxxxxxx>
Link: https://lore.kernel.org/r/20211212194257.68879-1-jose.exposito89@xxxxxxxxx
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 drivers/input/touchscreen/atmel_mxt_ts.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/input/touchscreen/atmel_mxt_ts.c
+++ b/drivers/input/touchscreen/atmel_mxt_ts.c
@@ -1809,7 +1809,7 @@ static int mxt_read_info_block(struct mx
 	if (error) {
 		dev_err(&client->dev, "Error %d parsing object table\n", error);
 		mxt_free_object_table(data);
-		goto err_free_mem;
+		return error;
 	}
 
 	data->object_table = (struct mxt_object *)(id_buf + MXT_OBJECT_START);