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 9A16E18733D; Mon, 12 Aug 2024 16:16:15 +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=1723479375; cv=none; b=oe6LFyjSifSY9zvCBe3bcMUOtHTyUK+vWApQolEOLy0hTJX/qKZKWlvqnK7O+RDNJTnQi533tqBi0JDqeTjogx3ZytNaG0hVrPWtNTuzGDB3XLwsV5WIQjGHZ4pEEUUhurTdUaeUr7A+5bJVZD9Q682eRh6w9/kWeFn31aOxqe8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723479375; c=relaxed/simple; bh=D6z5+0l2SPyTIFyqcjKykGPEq60sravBK3hd/P8D/Hc=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=uj0NNabO1tE6sCgcMfY9V6j/yPEvjLg2B8xv2UXvAS57YAO8j0wZeoI6cVxv3A1y1FSPs5ZAKR4Y/E7Zm7vbAXAih0uIZqCePb5O4kPSH7UVGgTvnVdc6s4tj3nXVcKAWO1La8CSnbMggF6jm+gMPxWe1T0NELOHWizkk2gPuTI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=y1CKbneP; 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="y1CKbneP" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 215CFC32782; Mon, 12 Aug 2024 16:16:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1723479375; bh=D6z5+0l2SPyTIFyqcjKykGPEq60sravBK3hd/P8D/Hc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=y1CKbnePw4DfZwi0VxXNdPNrmWtElpwxBMfQuvopT/aX+vE1Hw/6IO6IMhzGxW+gr N2SQs/9zuuZddyQBlcFj6HcOO8sjRrJFow6j0O9X/L/wrnKWWGQLtduml/yCNvqnSG HP9CRncFuDe6IHTIBAitUP2vuIZrj1IVrP3t8Hzk= 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 6.6 060/189] drm/amd/display: Add null checker before passing variables Date: Mon, 12 Aug 2024 18:01:56 +0200 Message-ID: <20240812160134.454324250@linuxfoundation.org> X-Mailer: git-send-email 2.46.0 In-Reply-To: <20240812160132.135168257@linuxfoundation.org> References: <20240812160132.135168257@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.6-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 60db3800666ec..94059aef762be 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -2628,7 +2628,8 @@ static int dm_suspend(void *handle) dm->cached_dc_state = dc_copy_state(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); @@ -6483,7 +6484,8 @@ 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); } } @@ -7296,7 +7298,8 @@ 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