From b54514df6ee4aaa7f821c447cea62354c6dec28c Mon Sep 17 00:00:00 2001 From: Bastien Nocera Date: Wed, 12 Dec 2018 16:24:05 +0100 Subject: [PATCH] elan: Assert on a possible division by zero in elan_process_frame_linear() libfprint/drivers/elan.c:249:26: warning: Division by zero px = (px - min) * 0xff / (max - min); ~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~ --- libfprint/drivers/elan.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/libfprint/drivers/elan.c b/libfprint/drivers/elan.c index 32d7534..ea84e7c 100644 --- a/libfprint/drivers/elan.c +++ b/libfprint/drivers/elan.c @@ -243,6 +243,8 @@ static void elan_process_frame_linear(unsigned short *raw_frame, max = raw_frame[i]; } + g_assert(max != min); + unsigned short px; for (int i = 0; i < frame_size; i++) { px = raw_frame[i];