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([183.91.15.56]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2c16609df63sm22731455ad.40.2026.06.03.04.50.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 03 Jun 2026 04:50:19 -0700 (PDT) From: phucduc.bui@gmail.com To: Srinivas Kandagatla , Mark Brown Cc: Liam Girdwood , Jaroslav Kysela , Takashi Iwai , Krzysztof Kozlowski , linux-sound@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, bui duc phuc Subject: [PATCH 2/9] ASoc: qcom: q6adm: Use guard() for mutex & spin locks Date: Wed, 3 Jun 2026 18:49:42 +0700 Message-ID: <20260603114949.149595-3-phucduc.bui@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260603114949.149595-1-phucduc.bui@gmail.com> References: <20260603114949.149595-1-phucduc.bui@gmail.com> 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 Clean up the code using guard() for mutex & spin locks. Merely code refactoring, and no behavior change. Signed-off-by: bui duc phuc --- NOTE: This patch is compile-tested only. sound/soc/qcom/qdsp6/q6adm.c | 52 +++++++++++++----------------------- 1 file changed, 18 insertions(+), 34 deletions(-) diff --git a/sound/soc/qcom/qdsp6/q6adm.c b/sound/soc/qcom/qdsp6/q6adm.c index db0ae71f2983..44c268c3e529 100644 --- a/sound/soc/qcom/qdsp6/q6adm.c +++ b/sound/soc/qcom/qdsp6/q6adm.c @@ -92,9 +92,8 @@ static struct q6copp *q6adm_find_copp(struct q6adm *adm, int port_idx, { struct q6copp *c; struct q6copp *ret = NULL; - unsigned long flags; - spin_lock_irqsave(&adm->copps_list_lock, flags); + guard(spinlock_irqsave)(&adm->copps_list_lock); list_for_each_entry(c, &adm->copps_list, node) { if ((port_idx == c->afe_port) && (copp_idx == c->copp_idx)) { ret = c; @@ -103,8 +102,6 @@ static struct q6copp *q6adm_find_copp(struct q6adm *adm, int port_idx, } } - spin_unlock_irqrestore(&adm->copps_list_lock, flags); - return ret; } @@ -116,14 +113,13 @@ static int q6adm_apr_send_copp_pkt(struct q6adm *adm, struct q6copp *copp, uint32_t opcode = pkt->hdr.opcode; int ret; - mutex_lock(&adm->lock); + guard(mutex)(&adm->lock); copp->result.opcode = 0; copp->result.status = 0; ret = apr_send_pkt(adm->apr, pkt); if (ret < 0) { dev_err(dev, "Failed to send APR packet\n"); - ret = -EINVAL; - goto err; + return -EINVAL; } /* Wait for the callback with copp id */ @@ -146,8 +142,6 @@ static int q6adm_apr_send_copp_pkt(struct q6adm *adm, struct q6copp *copp, ret = -EINVAL; } -err: - mutex_unlock(&adm->lock); return ret; } @@ -172,17 +166,16 @@ static void q6adm_free_copp(struct kref *ref) { struct q6copp *c = container_of(ref, struct q6copp, refcount); struct q6adm *adm = c->adm; - unsigned long flags; int ret; ret = q6adm_device_close(adm, c, c->afe_port, c->copp_idx); if (ret < 0) dev_err(adm->dev, "Failed to close copp %d\n", ret); - spin_lock_irqsave(&adm->copps_list_lock, flags); - clear_bit(c->copp_idx, &adm->copp_bitmap[c->afe_port]); - list_del(&c->node); - spin_unlock_irqrestore(&adm->copps_list_lock, flags); + scoped_guard(spinlock_irqsave, &adm->copps_list_lock) { + clear_bit(c->copp_idx, &adm->copp_bitmap[c->afe_port]); + list_del(&c->node); + } kfree(c); } @@ -306,9 +299,8 @@ static struct q6copp *q6adm_find_matching_copp(struct q6adm *adm, { struct q6copp *c; struct q6copp *ret = NULL; - unsigned long flags; - spin_lock_irqsave(&adm->copps_list_lock, flags); + guard(spinlock_irqsave)(&adm->copps_list_lock); list_for_each_entry(c, &adm->copps_list, node) { if ((port_id == c->afe_port) && (topology == c->topology) && @@ -318,7 +310,6 @@ static struct q6copp *q6adm_find_matching_copp(struct q6adm *adm, kref_get(&c->refcount); } } - spin_unlock_irqrestore(&adm->copps_list_lock, flags); return ret; } @@ -384,7 +375,6 @@ struct q6copp *q6adm_open(struct device *dev, int port_id, int path, int rate, { struct q6adm *adm = dev_get_drvdata(dev->parent); struct q6copp *copp; - unsigned long flags; int ret = 0; if (port_id < 0) { @@ -399,15 +389,13 @@ struct q6copp *q6adm_open(struct device *dev, int port_id, int path, int rate, return copp; } - spin_lock_irqsave(&adm->copps_list_lock, flags); - copp = q6adm_alloc_copp(adm, port_id); - if (IS_ERR(copp)) { - spin_unlock_irqrestore(&adm->copps_list_lock, flags); - return ERR_CAST(copp); - } + scoped_guard(spinlock_irqsave, &adm->copps_list_lock) { + copp = q6adm_alloc_copp(adm, port_id); + if (IS_ERR(copp)) + return ERR_CAST(copp); - list_add_tail(&copp->node, &adm->copps_list); - spin_unlock_irqrestore(&adm->copps_list_lock, flags); + list_add_tail(&copp->node, &adm->copps_list); + } kref_init(&copp->refcount); copp->topology = topology; @@ -518,7 +506,7 @@ int q6adm_matrix_map(struct device *dev, int path, kref_put(&copp->refcount, q6adm_free_copp); } - mutex_lock(&adm->lock); + guard(mutex)(&adm->lock); adm->result.status = 0; adm->result.opcode = 0; @@ -526,7 +514,7 @@ int q6adm_matrix_map(struct device *dev, int path, if (ret < 0) { dev_err(dev, "routing for stream %d failed ret %d\n", payload_map.session_id, ret); - goto fail_cmd; + return ret; } ret = wait_event_timeout(adm->matrix_map_wait, adm->result.opcode == pkt->hdr.opcode, @@ -534,17 +522,13 @@ int q6adm_matrix_map(struct device *dev, int path, if (!ret) { dev_err(dev, "routing for stream %d failed\n", payload_map.session_id); - ret = -ETIMEDOUT; - goto fail_cmd; + return -ETIMEDOUT; } else if (adm->result.status > 0) { dev_err(dev, "DSP returned error[%d]\n", adm->result.status); - ret = -EINVAL; - goto fail_cmd; + return -EINVAL; } -fail_cmd: - mutex_unlock(&adm->lock); return ret; } EXPORT_SYMBOL_GPL(q6adm_matrix_map); -- 2.43.0