Unverified Commit ea24a564 authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
Browse files

!3955 drm/radeon: possible buffer overflow 

Merge Pull Request from: @ci-robot 
 
PR sync from: Dapeng Yu <dapeng.yu@windriver.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/TLGC6SVGWOHQEQZU734B72OKKP5LTCTL/ 
 
https://gitee.com/openeuler/kernel/issues/I8AS5P 
 
Link:https://gitee.com/openeuler/kernel/pulls/3955

 

Reviewed-by: default avatarsanglipeng <sanglipeng1@jd.com>
Signed-off-by: default avatarJialin Zhang <zhangjialin11@huawei.com>
parents f962dafb 23eb9c1f

drivers/gpu/drm/radeon/evergreen.c

+4 −3
Original line number Diff line number Diff line
@@ -4819,14 +4819,15 @@ int evergreen_irq_process(struct radeon_device *rdev) 
			break;

		case 44: /* hdmi */

			afmt_idx = src_data;

			if (!(afmt_status[afmt_idx] & AFMT_AZ_FORMAT_WTRIG))

				DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");



			if (afmt_idx > 5) {

				DRM_ERROR("Unhandled interrupt: %d %d\n",

					  src_id, src_data);

				break;

			}



			if (!(afmt_status[afmt_idx] & AFMT_AZ_FORMAT_WTRIG))

				DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");



			afmt_status[afmt_idx] &= ~AFMT_AZ_FORMAT_WTRIG;

			queue_hdmi = true;

			DRM_DEBUG("IH: HDMI%d\n", afmt_idx + 1);