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[109.252.170.211]) by smtp.gmail.com with ESMTPSA id s15sm268311ljp.25.2020.09.08.15.40.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 08 Sep 2020 15:40:56 -0700 (PDT) From: Dmitry Osipenko To: Thierry Reding , Jonathan Hunter , Laxman Dewangan , Wolfram Sang , =?UTF-8?q?Micha=C5=82=20Miros=C5=82aw?= , Andy Shevchenko Cc: linux-i2c@vger.kernel.org, linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v7 27/34] i2c: tegra: Check errors for both positive and negative values Date: Wed, 9 Sep 2020 01:39:59 +0300 Message-Id: <20200908224006.25636-28-digetx@gmail.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20200908224006.25636-1-digetx@gmail.com> References: <20200908224006.25636-1-digetx@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The driver's code is inconsistent in regards to the error values checking. The correct way should be to check both positive and negative values. This patch cleans up the error-checks in the code. Note that the pm_runtime_get_sync() could return positive value on success, hence only relevant parts of the code are changed by this patch. Reviewed-by: Michał Mirosław Signed-off-by: Dmitry Osipenko --- drivers/i2c/busses/i2c-tegra.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c index 2f39366b6d55..fe672cfebe12 100644 --- a/drivers/i2c/busses/i2c-tegra.c +++ b/drivers/i2c/busses/i2c-tegra.c @@ -981,7 +981,7 @@ static int tegra_i2c_config_fifo_trig(struct tegra_i2c_dev *i2c_dev, size_t len) slv_config.device_fc = true; ret = dmaengine_slave_config(chan, &slv_config); - if (ret < 0) { + if (ret) { dev_err(i2c_dev->dev, "DMA slave config failed: %d\n", ret); return ret; @@ -1224,7 +1224,7 @@ static int tegra_i2c_xfer_msg(struct tegra_i2c_dev *i2c_dev, xfer_size, DMA_FROM_DEVICE); err = tegra_i2c_dma_submit(i2c_dev, xfer_size); - if (err < 0) { + if (err) { dev_err(i2c_dev->dev, "starting RX DMA failed, err %d\n", err); @@ -1249,7 +1249,7 @@ static int tegra_i2c_xfer_msg(struct tegra_i2c_dev *i2c_dev, xfer_size, DMA_TO_DEVICE); err = tegra_i2c_dma_submit(i2c_dev, xfer_size); - if (err < 0) { + if (err) { dev_err(i2c_dev->dev, "starting TX DMA failed, err %d\n", err); -- 2.27.0