Message ID | 20190425195310.31562-4-mathieu.poirier@linaro.org (mailing list archive) |
---|---|
State | Mainlined, archived |
Commit | 08be874775f13a0acffff864440d10b8b1397912 |
Headers | show
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[68.147.8.254]) by smtp.gmail.com with ESMTPSA id t64sm47261961pfa.86.2019.04.25.12.53.15 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 25 Apr 2019 12:53:15 -0700 (PDT) From: Mathieu Poirier <mathieu.poirier@linaro.org> To: gregkh@linuxfoundation.org Subject: [PATCH 03/32] coresight: tmc: Report DMA setup failures Date: Thu, 25 Apr 2019 13:52:41 -0600 Message-Id: <20190425195310.31562-4-mathieu.poirier@linaro.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190425195310.31562-1-mathieu.poirier@linaro.org> References: <20190425195310.31562-1-mathieu.poirier@linaro.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190425_125317_375977_B2D28A08 X-CRM114-Status: GOOD ( 13.40 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: <linux-arm-kernel.lists.infradead.org> List-Unsubscribe: <http://lists.infradead.org/mailman/options/linux-arm-kernel>, <mailto:linux-arm-kernel-request@lists.infradead.org?subject=unsubscribe> List-Archive: <http://lists.infradead.org/pipermail/linux-arm-kernel/> List-Post: <mailto:linux-arm-kernel@lists.infradead.org> List-Help: <mailto:linux-arm-kernel-request@lists.infradead.org?subject=help> List-Subscribe: <http://lists.infradead.org/mailman/listinfo/linux-arm-kernel>, <mailto:linux-arm-kernel-request@lists.infradead.org?subject=subscribe> Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" <linux-arm-kernel-bounces@lists.infradead.org> Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP |
Series |
coresight: next v5.1-rc6
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expand
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diff --git a/drivers/hwtracing/coresight/coresight-tmc.c b/drivers/hwtracing/coresight/coresight-tmc.c index 2a02da3d630f..647b6aa93554 100644 --- a/drivers/hwtracing/coresight/coresight-tmc.c +++ b/drivers/hwtracing/coresight/coresight-tmc.c @@ -340,6 +340,8 @@ static inline bool tmc_etr_can_use_sg(struct tmc_drvdata *drvdata) static int tmc_etr_setup_caps(struct tmc_drvdata *drvdata, u32 devid, void *dev_caps) { + int rc; + u32 dma_mask = 0; /* Set the unadvertised capabilities */ @@ -369,7 +371,10 @@ static int tmc_etr_setup_caps(struct tmc_drvdata *drvdata, dma_mask = 40; } - return dma_set_mask_and_coherent(drvdata->dev, DMA_BIT_MASK(dma_mask)); + rc = dma_set_mask_and_coherent(drvdata->dev, DMA_BIT_MASK(dma_mask)); + if (rc) + dev_err(drvdata->dev, "Failed to setup DMA mask: %d\n", rc); + return rc; } static int tmc_probe(struct amba_device *adev, const struct amba_id *id)