From 3afd0634a2aca32466617b3bc1075c127f75d776 Mon Sep 17 00:00:00 2001 From: Suzuki K Poulose Date: Thu, 25 Aug 2016 15:18:55 -0600 Subject: [PATCH] coresight: Consolidate error handling path for tmc_probe This patch cleans up the error handling path for tmc_probe as a side effect of the removal of the spurious dma_free_coherent(). Cc: Mathieu Poirier Signed-off-by: Suzuki K Poulose Signed-off-by: Mathieu Poirier Signed-off-by: Greg Kroah-Hartman --- drivers/hwtracing/coresight/coresight-tmc.c | 36 ++++++++++++++--------------- 1 file changed, 17 insertions(+), 19 deletions(-) diff --git a/drivers/hwtracing/coresight/coresight-tmc.c b/drivers/hwtracing/coresight/coresight-tmc.c index 3978cbb..1b47258 100644 --- a/drivers/hwtracing/coresight/coresight-tmc.c +++ b/drivers/hwtracing/coresight/coresight-tmc.c @@ -309,22 +309,31 @@ static int tmc_probe(struct amba_device *adev, const struct amba_id *id) if (np) { pdata = of_get_coresight_platform_data(dev, np); - if (IS_ERR(pdata)) - return PTR_ERR(pdata); + if (IS_ERR(pdata)) { + ret = PTR_ERR(pdata); + goto out; + } adev->dev.platform_data = pdata; } + ret = -ENOMEM; drvdata = devm_kzalloc(dev, sizeof(*drvdata), GFP_KERNEL); if (!drvdata) - return -ENOMEM; + goto out; + + desc = devm_kzalloc(dev, sizeof(*desc), GFP_KERNEL); + if (!desc) + goto out; drvdata->dev = &adev->dev; dev_set_drvdata(dev, drvdata); /* Validity for the resource is already checked by the AMBA core */ base = devm_ioremap_resource(dev, res); - if (IS_ERR(base)) - return PTR_ERR(base); + if (IS_ERR(base)) { + ret = PTR_ERR(base); + goto out; + } drvdata->base = base; @@ -347,12 +356,6 @@ static int tmc_probe(struct amba_device *adev, const struct amba_id *id) pm_runtime_put(&adev->dev); - desc = devm_kzalloc(dev, sizeof(*desc), GFP_KERNEL); - if (!desc) { - ret = -ENOMEM; - goto err_devm_kzalloc; - } - desc->pdata = pdata; desc->dev = dev; desc->subtype.sink_subtype = CORESIGHT_DEV_SUBTYPE_SINK_BUFFER; @@ -373,7 +376,7 @@ static int tmc_probe(struct amba_device *adev, const struct amba_id *id) drvdata->csdev = coresight_register(desc); if (IS_ERR(drvdata->csdev)) { ret = PTR_ERR(drvdata->csdev); - goto err_devm_kzalloc; + goto out; } drvdata->miscdev.name = pdata->name; @@ -381,13 +384,8 @@ static int tmc_probe(struct amba_device *adev, const struct amba_id *id) drvdata->miscdev.fops = &tmc_fops; ret = misc_register(&drvdata->miscdev); if (ret) - goto err_misc_register; - - return 0; - -err_misc_register: - coresight_unregister(drvdata->csdev); -err_devm_kzalloc: + coresight_unregister(drvdata->csdev); +out: return ret; } -- 2.7.4