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[86.30.250.44]) by smtp.gmail.com with ESMTPSA id q13sm4810355wrn.84.2020.06.11.05.42.10 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 11 Jun 2020 05:42:10 -0700 (PDT) From: Srinivas Kandagatla To: broonie@kernel.org Subject: [PATCH 7/8] ASoC: q6asm-dai: check available buffer size before sending Date: Thu, 11 Jun 2020 13:41:58 +0100 Message-Id: <20200611124159.20742-8-srinivas.kandagatla@linaro.org> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20200611124159.20742-1-srinivas.kandagatla@linaro.org> References: <20200611124159.20742-1-srinivas.kandagatla@linaro.org> MIME-Version: 1.0 Cc: alsa-devel@alsa-project.org, tiwai@suse.com, lgirdwood@gmail.com, linux-kernel@vger.kernel.org, vkoul@kernel.org, Srinivas Kandagatla X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" This patch add simple check before sending data buffer to dsp which will ensure that we are not sending any buffers which are not already available. Signed-off-by: Srinivas Kandagatla --- sound/soc/qcom/qdsp6/q6asm-dai.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/sound/soc/qcom/qdsp6/q6asm-dai.c b/sound/soc/qcom/qdsp6/q6asm-dai.c index 892411f81613..7aba3c07810b 100644 --- a/sound/soc/qcom/qdsp6/q6asm-dai.c +++ b/sound/soc/qcom/qdsp6/q6asm-dai.c @@ -534,13 +534,12 @@ static void compress_event_handler(uint32_t opcode, uint32_t token, prtd->copied_total += bytes_written; snd_compr_fragment_elapsed(substream); - if (prtd->state != Q6ASM_STREAM_RUNNING) { + avail = prtd->bytes_received - prtd->bytes_sent; + if (prtd->state != Q6ASM_STREAM_RUNNING || avail <= 0) { spin_unlock_irqrestore(&prtd->lock, flags); break; } - avail = prtd->bytes_received - prtd->bytes_sent; - if (avail >= prtd->pcm_count) { q6asm_write_async(prtd->audio_client, prtd->stream_id, prtd->pcm_count, 0, 0, 0);