diff options
Diffstat (limited to 'drivers/hwtracing')
| -rw-r--r-- | drivers/hwtracing/coresight/coresight-etm4x-core.c | 19 |
1 files changed, 14 insertions, 5 deletions
diff --git a/drivers/hwtracing/coresight/coresight-etm4x-core.c b/drivers/hwtracing/coresight/coresight-etm4x-core.c index 7e307022303a..264242ba345b 100644 --- a/drivers/hwtracing/coresight/coresight-etm4x-core.c +++ b/drivers/hwtracing/coresight/coresight-etm4x-core.c @@ -2046,17 +2046,14 @@ static int etm4_add_coresight_dev(struct etm4_init_arg *init_arg) static int etm4_probe(struct device *dev, void __iomem *base, u32 etm_pid) { - struct etmv4_drvdata *drvdata; + struct etmv4_drvdata *drvdata = dev_get_drvdata(dev); struct csdev_access access = { 0 }; struct etm4_init_arg init_arg = { 0 }; struct etm4_init_arg *delayed; - drvdata = devm_kzalloc(dev, sizeof(*drvdata), GFP_KERNEL); - if (!drvdata) + if (WARN_ON(!drvdata)) return -ENOMEM; - dev_set_drvdata(dev, drvdata); - if (pm_save_enable == PARAM_PM_SAVE_FIRMWARE) pm_save_enable = coresight_loses_context_with_cpu(dev) ? PARAM_PM_SAVE_SELF_HOSTED : PARAM_PM_SAVE_NEVER; @@ -2108,6 +2105,7 @@ static int etm4_probe(struct device *dev, void __iomem *base, u32 etm_pid) static int etm4_probe_amba(struct amba_device *adev, const struct amba_id *id) { + struct etmv4_drvdata *drvdata; void __iomem *base; struct device *dev = &adev->dev; struct resource *res = &adev->res; @@ -2118,6 +2116,11 @@ static int etm4_probe_amba(struct amba_device *adev, const struct amba_id *id) if (IS_ERR(base)) return PTR_ERR(base); + drvdata = devm_kzalloc(dev, sizeof(*drvdata), GFP_KERNEL); + if (!drvdata) + return -ENOMEM; + + dev_set_drvdata(dev, drvdata); ret = etm4_probe(dev, base, id->id); if (!ret) pm_runtime_put(&adev->dev); @@ -2127,8 +2130,14 @@ static int etm4_probe_amba(struct amba_device *adev, const struct amba_id *id) static int etm4_probe_platform_dev(struct platform_device *pdev) { + struct etmv4_drvdata *drvdata; int ret; + drvdata = devm_kzalloc(&pdev->dev, sizeof(*drvdata), GFP_KERNEL); + if (!drvdata) + return -ENOMEM; + + dev_set_drvdata(&pdev->dev, drvdata); pm_runtime_get_noresume(&pdev->dev); pm_runtime_set_active(&pdev->dev); pm_runtime_enable(&pdev->dev); |