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author | Wei Yongjun <yongjun_wei@trendmicro.com.cn> | 2013-09-22 05:04:23 (GMT) |
---|---|---|
committer | Will Deacon <will.deacon@arm.com> | 2013-09-24 13:03:05 (GMT) |
commit | fee4f2c66a3b0f0e97e16b3084e8c4151ae9196f (patch) | |
tree | 0813f6628bfa21f58428d8cd5891671636fb0644 /drivers/bus | |
parent | b91c8f284acc2cb2aa43a1ce58322573ad983a14 (diff) | |
download | linux-fsl-qoriq-fee4f2c66a3b0f0e97e16b3084e8c4151ae9196f.tar.xz |
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 <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'drivers/bus')
-rw-r--r-- | drivers/bus/arm-cci.c | 33 |
1 files changed, 7 insertions, 26 deletions
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) |