linux-kernel - [PATCH 3/5] gma500: fix a missing break in psb_intel_crtc_mode

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Message-Id: <20220330120246.25580-4-xiam0nd.tong@gmail.com>
Date:   Wed, 30 Mar 2022 20:02:44 +0800
From:   Xiaomeng Tong <xiam0nd.tong@...il.com>
To:     patrik.r.jakobsson@...il.com, airlied@...ux.ie, daniel@...ll.ch
Cc:     rob@...com, yakui.zhao@...el.com, airlied@...hat.com,
        alan@...ux.intel.com, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org,
        Xiaomeng Tong <xiam0nd.tong@...il.com>
Subject: [PATCH 3/5] gma500: fix a missing break in psb_intel_crtc_mode_set

Instead of exiting the loop as expected when an entry is found, the
list_for_each_entry() continues until the traversal is complete. It
could result in multiple 'is_*' flags being set with true mistakely.

To fix this, when found the entry, add a break after the switch
statement.

Fixes: 89c78134cc54d (" gma500: Add Poulsbo support")
Signed-off-by: Xiaomeng Tong <xiam0nd.tong@...il.com>
---
 drivers/gpu/drm/gma500/psb_intel_display.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/gma500/psb_intel_display.c b/drivers/gpu/drm/gma500/psb_intel_display.c
index 42d1a733e124..85fc61bf333a 100644
--- a/drivers/gpu/drm/gma500/psb_intel_display.c
+++ b/drivers/gpu/drm/gma500/psb_intel_display.c
@@ -134,6 +134,8 @@ static int psb_intel_crtc_mode_set(struct drm_crtc *crtc,
 			is_tv = true;
 			break;
 		}
+
+		break;
 	}
 
 	refclk = 96000;
-- 
2.17.1