Unverified Commit faa52e40 authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
Browse files

!14068 media: v4l2-tpg: prevent the risk of a division by zero 

Merge Pull Request from: @ci-robot 
 
PR sync from: Zhao Yipeng <zhaoyipeng5@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/EG6A22T6YHNMRNR7E2RUYOAN7N7XDDL4/ 
 
https://gitee.com/src-openeuler/kernel/issues/IB5ATB 
 
Link:https://gitee.com/openeuler/kernel/pulls/14068

 

Reviewed-by: default avatarYuan Can <yuancan@huawei.com>
Signed-off-by: default avatarYuan Can <yuancan@huawei.com>
parents 088dc4aa ca77fa5d

drivers/media/common/v4l2-tpg/v4l2-tpg-core.c

+3 −0
Original line number Diff line number Diff line
@@ -1639,6 +1639,9 @@ static void tpg_precalculate_line(struct tpg_data *tpg) 
	unsigned p;

	unsigned x;



	if (WARN_ON_ONCE(!tpg->src_width || !tpg->scaled_width))

		return;



	switch (tpg->pattern) {

	case TPG_PAT_GREEN:

		contrast = TPG_COLOR_100_RED;