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([183.91.15.56]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-388fdaa2c73sm331073a91.1.2026.07.07.19.35.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 07 Jul 2026 19:36:01 -0700 (PDT) From: phucduc.bui@gmail.com To: Jaroslav Kysela , Takashi Iwai Cc: cassiogabrielcontato@gmail.com, Cezary Rojewski , Mark Brown , Kees Cook , linux-sound@vger.kernel.org, linux-kernel@vger.kernel.org, bui duc phuc Subject: [PATCH v2] ALSA: control: preserve snd_card_file_add() error code in snd_ctl_open() Date: Wed, 8 Jul 2026 09:35:40 +0700 Message-ID: <20260708023540.6962-1-phucduc.bui@gmail.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: bui duc phuc snd_ctl_open() unconditionally overwrites the return value of snd_card_file_add() with -ENODEV on failure, discarding the actual error code. Fix this by directly returning the original error code returned by snd_card_file_add() (e.g. -ENOMEM or -ENODEV). This behavior is consistent with the error handling used in other functions such as snd_mixer_oss_open(), snd_hwdep_open(), snd_pcm_oss_open(), and others. There is no functional change other than the returned error code in this failure path. Signed-off-by: bui duc phuc --- Changes in v2: - Update commit messages. - Drop superfluous braces. sound/core/control.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/sound/core/control.c b/sound/core/control.c index 0ca9fff56e51..73d7ba0f509f 100644 --- a/sound/core/control.c +++ b/sound/core/control.c @@ -63,10 +63,8 @@ static int snd_ctl_open(struct inode *inode, struct file *file) goto __error1; } err = snd_card_file_add(card, file); - if (err < 0) { - err = -ENODEV; + if (err < 0) goto __error1; - } if (!try_module_get(card->module)) { err = -ENODEV; goto __error2; -- 2.43.0