From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E8960186E34; Mon, 12 Aug 2024 16:28:53 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723480134; cv=none; b=q1TgA1O1v3tkbvc15r+QfgIl8oZsq+t23S5kV20xXRrwgpBvjg3hdUfyCkSRUeZWi88csTy+xknBxnsrq0wa6gJWsetGhvR5/SwFeyjXpHIX2gerR+zsvyZSAzifK46Do3JvO3mYZTuedrFKKG7GcXOpZ4mW2jeUy8OoYJnfrnE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723480134; c=relaxed/simple; bh=+qhpB7EsTJa/hgZmfPMf5xkt+abNZ8UUyK2CezpmOvg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Vc2BOznjzdmbQoi8T0pKcLWxXh7ryW8OWWxR4PtOs/6uB20/+qIJBHUpGMZ6Nj++svtprZk3iswvi6L+pn2A7tigT6kSqRQxFv9rfRZcFe9IWMcwlTddEVFpXZVkrBRwZveDtMarmnaSvrKK/2Z6hwAdufMdCovysLZ5r3whdCQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=k9xhpTei; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="k9xhpTei" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2FB93C32782; Mon, 12 Aug 2024 16:28:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1723480133; bh=+qhpB7EsTJa/hgZmfPMf5xkt+abNZ8UUyK2CezpmOvg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=k9xhpTei0ujITrquteZTm/u3ytzXQzTzlLxDjQ+X4262JH30mZW4JikTDLsIBuv6u ndqSPSTPDDulVPr/fp7F/onLhIhHddWrWJbgeKhC4txUjxniOgbhZV7sAMUOh9Bxxo 0DRQJSoTQPcRYPbu2i+lmkmKsnwRRIrplp0gXizw= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Harry Wentland , Hamza Mahfooz , Alex Hung , Alex Deucher , Sasha Levin Subject: [PATCH 6.10 106/263] drm/amd/display: Add null checker before passing variables Date: Mon, 12 Aug 2024 18:01:47 +0200 Message-ID: <20240812160150.601420710@linuxfoundation.org> X-Mailer: git-send-email 2.46.0 In-Reply-To: <20240812160146.517184156@linuxfoundation.org> References: <20240812160146.517184156@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.10-stable review patch. If anyone has any objections, please let me know. ------------------ From: Alex Hung [ Upstream commit 8092aa3ab8f7b737a34b71f91492c676a843043a ] Checks null pointer before passing variables to functions. This fixes 3 NULL_RETURNS issues reported by Coverity. Reviewed-by: Harry Wentland Acked-by: Hamza Mahfooz Signed-off-by: Alex Hung Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index 3cdcadd41be1a..964bb6d0a3833 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -2701,7 +2701,8 @@ static int dm_suspend(void *handle) dm->cached_dc_state = dc_state_create_copy(dm->dc->current_state); - dm_gpureset_toggle_interrupts(adev, dm->cached_dc_state, false); + if (dm->cached_dc_state) + dm_gpureset_toggle_interrupts(adev, dm->cached_dc_state, false); amdgpu_dm_commit_zero_streams(dm->dc); @@ -6788,7 +6789,8 @@ static void create_eml_sink(struct amdgpu_dm_connector *aconnector) aconnector->dc_sink = aconnector->dc_link->local_sink ? aconnector->dc_link->local_sink : aconnector->dc_em_sink; - dc_sink_retain(aconnector->dc_sink); + if (aconnector->dc_sink) + dc_sink_retain(aconnector->dc_sink); } } @@ -7615,7 +7617,8 @@ static int amdgpu_dm_connector_get_modes(struct drm_connector *connector) drm_add_modes_noedid(connector, 1920, 1080); } else { amdgpu_dm_connector_ddc_get_modes(connector, edid); - amdgpu_dm_connector_add_common_modes(encoder, connector); + if (encoder) + amdgpu_dm_connector_add_common_modes(encoder, connector); amdgpu_dm_connector_add_freesync_modes(connector, edid); } amdgpu_dm_fbc_init(connector); -- 2.43.0