linux-kernel - [PATCH] drm/nouveau: remove redundant null check on array mstm->msto

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Message-Id: <20170817103752.16440-1-colin.king@canonical.com>
Date:   Thu, 17 Aug 2017 11:37:52 +0100
From:   Colin King <colin.king@...onical.com>
To:     Ben Skeggs <bskeggs@...hat.com>, David Airlie <airlied@...ux.ie>,
        dri-devel@...ts.freedesktop.org, nouveau@...ts.freedesktop.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] drm/nouveau: remove redundant null check on array mstm->msto

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

The check to see if mstm->msto is null is redundant because it is
an array and hence can never be null.  Remove the redundant check.

Detected by CoverityScan, CID#1375915 ("Array compared against 0")

Signed-off-by: Colin Ian King <colin.king@...onical.com>
---
 drivers/gpu/drm/nouveau/nv50_display.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/nouveau/nv50_display.c b/drivers/gpu/drm/nouveau/nv50_display.c
index f7b4326a4641..51e9081b95a0 100644
--- a/drivers/gpu/drm/nouveau/nv50_display.c
+++ b/drivers/gpu/drm/nouveau/nv50_display.c
@@ -3141,7 +3141,7 @@ nv50_mstc_new(struct nv50_mstm *mstm, struct drm_dp_mst_port *port,
 	mstc->connector.funcs->reset(&mstc->connector);
 	nouveau_conn_attach_properties(&mstc->connector);
 
-	for (i = 0; i < ARRAY_SIZE(mstm->msto) && mstm->msto; i++)
+	for (i = 0; i < ARRAY_SIZE(mstm->msto); i++)
 		drm_mode_connector_attach_encoder(&mstc->connector, &mstm->msto[i]->encoder);
 
 	drm_object_attach_property(&mstc->connector.base, dev->mode_config.path_property, 0);
-- 
2.11.0