perf/x86/intel/uncore: Fix reference count leak in snr_uncore_mmio_map()

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[ Upstream commit 8ebd16c11c ]

pci_get_device() will increase the reference count for the returned
pci_dev, so snr_uncore_get_mc_dev() will return a pci_dev with its
reference count increased. We need to call pci_dev_put() to decrease the
reference count. Let's add the missing pci_dev_put().

Fixes: ee49532b38 ("perf/x86/intel/uncore: Add IMC uncore support for Snow Ridge")
Signed-off-by: Xiongfeng Wang <wangxiongfeng2@huawei.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Kan Liang <kan.liang@linux.intel.com>
Link: https://lore.kernel.org/r/20221118063137.121512-4-wangxiongfeng2@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Xiongfeng Wang 2022-11-18 14:31:36 +08:00 • committed by Greg Kroah-Hartman

parent bd66877c0b

commit dc7f07bc1e

1 changed files with 2 additions and 0 deletions

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arch/x86/events/intel/uncore_snbep.c

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