perf/arm_dmc620_pmu: Fix error return code in dmc620_pmu_device_probe()
Fix to return negative error code -ENOMEM from the error handling case instead of 0, as done elsewhere in this function. Fixes: 53c218da ("driver/perf: Add PMU driver for the ARM DMC-620 memory controller") Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Link: https://lore.kernel.org/r/20210312080421.277562-1-weiyongjun1@huawei.comSigned-off-by: Will Deacon <will@kernel.org>
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