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Fri, 29 May 2020 15:59:04 GMT Received: by smtp.codeaurora.org (Postfix, from userid 1001) id D100BC433CB; Fri, 29 May 2020 15:59:04 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-caf-mail-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=2.0 tests=ALL_TRUSTED,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.0 Received: from zijuhu-gv.qualcomm.com (unknown [180.166.53.21]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: zijuhu) by smtp.codeaurora.org (Postfix) with ESMTPSA id B3176C433C6; Fri, 29 May 2020 15:59:01 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org B3176C433C6 Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=none smtp.mailfrom=zijuhu@codeaurora.org From: Zijun Hu To: sean.wang@mediatek.com, marcel@holtmann.org, johan.hedberg@gmail.com, matthias.bgg@gmail.com Subject: [PATCH v1] Bluetooth: btmtkuart: Use serdev_device_write_buf() instead of serdev_device_write() Date: Fri, 29 May 2020 23:58:56 +0800 Message-Id: <1590767936-21907-1-git-send-email-zijuhu@codeaurora.org> X-Mailer: git-send-email 2.7.4 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200529_085922_063932_CE4F5AA5 X-CRM114-Status: GOOD ( 12.16 ) X-Spam-Score: 0.0 (/) X-Spam-Report: SpamAssassin version 3.4.4 on bombadil.infradead.org summary: Content analysis details: (0.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [104.130.122.27 listed in list.dnswl.org] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record 0.0 RCVD_IN_MSPIKE_H4 RBL: Very Good reputation (+4) [104.130.122.27 listed in wl.mailspike.net] -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid 0.0 RCVD_IN_MSPIKE_WL Mailspike good senders X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-kernel@vger.kernel.org, linux-bluetooth@vger.kernel.org, mka@chromium.org, linux-mediatek@lists.infradead.org, zijuhu@codeaurora.org, linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org serdev_device_write() is not appropriate at here because serdev_device_write_wakeup() is not used to release completion hold by the former at @write_wakeup member of struct serdev_device_ops. Fix by using serdev_device_write_buf() instead of serdev_device_write(). Signed-off-by: Zijun Hu --- drivers/bluetooth/btmtkuart.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/bluetooth/btmtkuart.c b/drivers/bluetooth/btmtkuart.c index 8a81fbca5c9d..6c40bc75fb5b 100644 --- a/drivers/bluetooth/btmtkuart.c +++ b/drivers/bluetooth/btmtkuart.c @@ -695,8 +695,7 @@ static int btmtkuart_change_baudrate(struct hci_dev *hdev) /* Send a dummy byte 0xff to activate the new baudrate */ param = 0xff; - err = serdev_device_write(bdev->serdev, ¶m, sizeof(param), - MAX_SCHEDULE_TIMEOUT); + err = serdev_device_write_buf(bdev->serdev, ¶m, sizeof(param)); if (err < 0 || err < sizeof(param)) return err;