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 10EFB1FB4F for ; Tue, 1 Aug 2023 09:47:04 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 88113C433C7; Tue, 1 Aug 2023 09:47:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1690883223; bh=OeVLk6mlwRD/ZLauaMFLG2EYUsi3afLuezd1XrFJVvs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=g3D3PRy8Pfq0KtqvL1P+k589MVIn1gsPNTCdWhXfB2zDt388MiRN20zFR7DvsT9My 9T4nGwgp/dF7brZ82JtdJGifXRuOUK3WyEA8+P7JEFZ4MIhRT4O29ihdZu7Klwr0cV HwOqPc/qH0RBtq+Tew67f0ExgvAKbQjLS4NcAgdQ= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Dan Carpenter , Alex Deucher , Sasha Levin Subject: [PATCH 6.4 130/239] drm/amd/display: Unlock on error path in dm_handle_mst_sideband_msg_ready_event() Date: Tue, 1 Aug 2023 11:19:54 +0200 Message-ID: <20230801091930.402791817@linuxfoundation.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230801091925.659598007@linuxfoundation.org> References: <20230801091925.659598007@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Dan Carpenter [ Upstream commit 38ac4e8385ffb275b1837986ca6c16f26ea028c5 ] This error path needs to unlock the "aconnector->handle_mst_msg_ready" mutex before returning. Fixes: 4f6d9e38c4d2 ("drm/amd/display: Add polling method to handle MST reply packet") Signed-off-by: Dan Carpenter Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c index 888e80f498e97..9bc86deac9e8e 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c @@ -706,7 +706,7 @@ void dm_handle_mst_sideband_msg_ready_event( if (retry == 3) { DRM_ERROR("Failed to ack MST event.\n"); - return; + break; } drm_dp_mst_hpd_irq_send_new_request(&aconnector->mst_mgr); -- 2.40.1