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 2BD4CFBE7 for ; Mon, 15 May 2023 16:47:30 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7A461C433EF; Mon, 15 May 2023 16:47:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1684169250; bh=WCzTwfT1bT2CnQ/Si6jMLvKGx1tZwSHCkr8xf633Rdw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=tJa0nP2dvJeXMJpQzFUUqEhBvv8dshec+wIyzk9+K9VRxy5tFNXlkSExqxsH+NasC UaS8xcsHuP5zYLwDQp5M4iaum63m+1x03KuGkxUvrvsLA/L0Ib5jwnjHMUDjK/WqND kRsLQlDPlZal+OqZUnsqyaqSwZI5uNPNlxlpUN+U= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Ruliang Lin , Dongliang Mu , Daniel Mack , Takashi Iwai , Sasha Levin Subject: [PATCH 4.19 160/191] ALSA: caiaq: input: Add error handling for unsupported input methods in `snd_usb_caiaq_input_init` Date: Mon, 15 May 2023 18:26:37 +0200 Message-Id: <20230515161713.232534664@linuxfoundation.org> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230515161707.203549282@linuxfoundation.org> References: <20230515161707.203549282@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: Ruliang Lin [ Upstream commit 0d727e1856ef22dd9337199430258cb64cbbc658 ] Smatch complains that: snd_usb_caiaq_input_init() warn: missing error code 'ret' This patch adds a new case to handle the situation where the device does not support any input methods in the `snd_usb_caiaq_input_init` function. It returns an `-EINVAL` error code to indicate that no input methods are supported on the device. Fixes: 523f1dce3743 ("[ALSA] Add Native Instrument usb audio device support") Signed-off-by: Ruliang Lin Reviewed-by: Dongliang Mu Acked-by: Daniel Mack Link: https://lore.kernel.org/r/20230504065054.3309-1-u202112092@hust.edu.cn Signed-off-by: Takashi Iwai Signed-off-by: Sasha Levin --- sound/usb/caiaq/input.c | 1 + 1 file changed, 1 insertion(+) diff --git a/sound/usb/caiaq/input.c b/sound/usb/caiaq/input.c index e883659ea6e77..19951e1dbbb01 100644 --- a/sound/usb/caiaq/input.c +++ b/sound/usb/caiaq/input.c @@ -817,6 +817,7 @@ int snd_usb_caiaq_input_init(struct snd_usb_caiaqdev *cdev) default: /* no input methods supported on this device */ + ret = -EINVAL; goto exit_free_idev; } -- 2.39.2