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platform/x86/intel/pmc: Fix in mtl_punit_pmt_init()

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pci_get_domain_bus_and_slot() increases the reference count on the pci
device that is used to register the endpoint. In case of failure in
registration, decrease reference count using pci_dev_put(pcidev) before
returning.

Fixes: 6e79648553 ("platform/x86/intel/pmc: Show Die C6 counter on Meteor Lake")
Signed-off-by: Rajvi Jingar <rajvi.jingar@linux.intel.com>
Signed-off-by: David E. Box <david.e.box@linux.intel.com>
Link: https://lore.kernel.org/r/20231219042216.2592029-1-rajvi.jingar@linux.intel.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
This commit is contained in:
Rajvi Jingar 2023-12-18 20:22:09 -08:00 committed by Hans de Goede
parent bd142914f8
commit 1f5e56c9f6
1 changed files with 1 additions and 1 deletions
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2
drivers/platform/x86/intel/pmc/mtl.c
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@ -985,6 +985,7 @@ static void mtl_punit_pmt_init(struct pmc_dev *pmcdev)
}
ep = pmt_telem_find_and_register_endpoint(pcidev, MTL_PMT_DMU_GUID, 0);
pci_dev_put(pcidev);
if (IS_ERR(ep)) {
dev_err(&pmcdev->pdev->dev,
"pmc_core: couldn't get DMU telem endpoint, %ld\n",
@ -992,7 +993,6 @@ static void mtl_punit_pmt_init(struct pmc_dev *pmcdev)
return;
}
pci_dev_put(pcidev);
pmcdev->punit_ep = ep;
pmcdev->has_die_c6 = true;