From fee4f2c66a3b0f0e97e16b3084e8c4151ae9196f Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Sun, 22 Sep 2013 06:04:23 +0100 Subject: drivers: CCI: fix the error handle in cci_pmu_probe() This patch fix the error handle of function cci_pmu_probe(): - using IS_ERR() instead of NULL test for the return value of devm_ioremap_resource() since it nerver return NULL. - remove kfree() for devm_kzalloc allocated memory - remove dev_warn() since devm_ioremap_resource() has error message already. Signed-off-by: Wei Yongjun Signed-off-by: Will Deacon --- drivers/bus/arm-cci.c | 33 +++++++-------------------------- 1 file changed, 7 insertions(+), 26 deletions(-) (limited to 'drivers') diff --git a/drivers/bus/arm-cci.c b/drivers/bus/arm-cci.c index dc6528e..bb5b90e 100644 --- a/drivers/bus/arm-cci.c +++ b/drivers/bus/arm-cci.c @@ -565,18 +565,9 @@ static int cci_pmu_probe(struct platform_device *pdev) return -ENOMEM; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) { - dev_warn(&pdev->dev, "Failed to get mem resource\n"); - ret = -EINVAL; - goto memalloc_err; - }; - pmu->base = devm_ioremap_resource(&pdev->dev, res); - if (!pmu->base) { - dev_warn(&pdev->dev, "Failed to ioremap\n"); - ret = -ENOMEM; - goto memalloc_err; - } + if (IS_ERR(pmu->base)) + return -ENOMEM; /* * CCI PMU has 5 overflow signals - one per counter; but some may be tied @@ -601,22 +592,18 @@ static int cci_pmu_probe(struct platform_device *pdev) if (i < CCI_PMU_MAX_HW_EVENTS) { dev_warn(&pdev->dev, "In-correct number of interrupts: %d, should be %d\n", i, CCI_PMU_MAX_HW_EVENTS); - ret = -EINVAL; - goto memalloc_err; + return -EINVAL; } pmu->port_ranges = port_range_by_rev(); if (!pmu->port_ranges) { dev_warn(&pdev->dev, "CCI PMU version not supported\n"); - ret = -EINVAL; - goto memalloc_err; + return -EINVAL; } pmu->cci_pmu = devm_kzalloc(&pdev->dev, sizeof(*(pmu->cci_pmu)), GFP_KERNEL); - if (!pmu->cci_pmu) { - ret = -ENOMEM; - goto memalloc_err; - } + if (!pmu->cci_pmu) + return -ENOMEM; pmu->hw_events.events = pmu->events; pmu->hw_events.used_mask = pmu->used_mask; @@ -624,15 +611,9 @@ static int cci_pmu_probe(struct platform_device *pdev) ret = cci_pmu_init(pmu->cci_pmu, pdev); if (ret) - goto pmuinit_err; + return ret; return 0; - -pmuinit_err: - kfree(pmu->cci_pmu); -memalloc_err: - kfree(pmu); - return ret; } static int cci_platform_probe(struct platform_device *pdev) -- cgit v1.1