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([183.91.15.56]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-364a27c356asm1107003a91.0.2026.04.29.03.27.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 29 Apr 2026 03:27:59 -0700 (PDT) From: phucduc.bui@gmail.com To: Mark Brown , Liam Girdwood Cc: Thierry Reding , Jonathan Hunter , Sheetal , Jaroslav Kysela , Takashi Iwai , linux-sound@vger.kernel.org, linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org, bui duc phuc Subject: [PATCH] ASoC: tegra: Use guard() for mutex locks Date: Wed, 29 Apr 2026 17:27:43 +0700 Message-ID: <20260429102743.103197-1-phucduc.bui@gmail.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-tegra@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: bui duc phuc Clean up the code using guard() for mutex locks. Merely code refactoring, and no behavior change. Signed-off-by: bui duc phuc --- sound/soc/tegra/tegra_isomgr_bw.c | 21 ++++++++++----------- 1 file changed, 10 insertions(+), 11 deletions(-) diff --git a/sound/soc/tegra/tegra_isomgr_bw.c b/sound/soc/tegra/tegra_isomgr_bw.c index fa979960bc09..db33acbf6c67 100644 --- a/sound/soc/tegra/tegra_isomgr_bw.c +++ b/sound/soc/tegra/tegra_isomgr_bw.c @@ -55,19 +55,18 @@ int tegra_isomgr_adma_setbw(struct snd_pcm_substream *substream, sample_bytes; } - mutex_lock(&adma_isomgr->mutex); - - if (is_running) { - if (bandwidth + adma_isomgr->current_bandwidth > adma_isomgr->max_bw) - bandwidth = adma_isomgr->max_bw - adma_isomgr->current_bandwidth; - - adma_isomgr->current_bandwidth += bandwidth; - } else { - adma_isomgr->current_bandwidth -= adma_isomgr->bw_per_dev[type][pcm->device]; + scoped_guard(mutex, &adma_isomgr->mutex) { + if (is_running) { + if (bandwidth + adma_isomgr->current_bandwidth > adma_isomgr->max_bw) + bandwidth = adma_isomgr->max_bw - adma_isomgr->current_bandwidth; + + adma_isomgr->current_bandwidth += bandwidth; + } else { + adma_isomgr->current_bandwidth -= + adma_isomgr->bw_per_dev[type][pcm->device]; + } } - mutex_unlock(&adma_isomgr->mutex); - adma_isomgr->bw_per_dev[type][pcm->device] = bandwidth; dev_dbg(dev, "Setting up bandwidth to %d KBps\n", adma_isomgr->current_bandwidth); -- 2.43.0