linux-kernel - [PATCH] drm/gma500/oaktrail_lvds: replace continue with break

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Message-Id: <20210618183524.590186-1-colin.king@canonical.com>
Date:   Fri, 18 Jun 2021 19:35:24 +0100
From:   Colin King <colin.king@...onical.com>
To:     Patrik Jakobsson <patrik.r.jakobsson@...il.com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        dri-devel@...ts.freedesktop.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] drm/gma500/oaktrail_lvds: replace continue with break

From: Colin Ian King <colin.king@...onical.com>

Currently a loop scans through the connector list checking
for connectors that do not match a specific criteria. The
use of the continue statement is a little unintuitive and
can confuse static analysis checking.  Invert the criteria
matching logic and use a break to terminate the loop once
the first suitable connector has been found.

Thanks to Patrik Jakobsson for explaining the original
intent of the code and suggesting this change.

Addresses-Coverity: ("Continue has no effect")
Signed-off-by: Colin Ian King <colin.king@...onical.com>
---
 drivers/gpu/drm/gma500/oaktrail_lvds.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/gma500/oaktrail_lvds.c b/drivers/gpu/drm/gma500/oaktrail_lvds.c
index 432bdcc57ac9..8541dcf237eb 100644
--- a/drivers/gpu/drm/gma500/oaktrail_lvds.c
+++ b/drivers/gpu/drm/gma500/oaktrail_lvds.c
@@ -113,8 +113,8 @@ static void oaktrail_lvds_mode_set(struct drm_encoder *encoder,
 
 	/* Find the connector we're trying to set up */
 	list_for_each_entry(connector, &mode_config->connector_list, head) {
-		if (!connector->encoder || connector->encoder->crtc != crtc)
-			continue;
+		if (connector->encoder && connector->encoder->crtc == crtc)
+			break;
 	}
 
 	if (!connector) {
-- 
2.31.1