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hwmon: (coretemp) fix pci device refcount leak in nv1a_ram_new() 

[ Upstream commit 7dec14537c ]

As comment of pci_get_domain_bus_and_slot() says, it returns
a pci device with refcount increment, when finish using it,
the caller must decrement the reference count by calling
pci_dev_put(). So call it after using to avoid refcount leak.

Fixes: 14513ee696 ("hwmon: (coretemp) Use PCI host bridge ID to identify CPU if necessary")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20221118093303.214163-1-yangyingliang@huawei.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Yang Yingliang 2022-11-18 17:33:03 +08:00 committed by Greg Kroah-Hartman
parent fb503d077f
commit bb75a0d122
1 changed files with 4 additions and 1 deletions
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5
drivers/hwmon/coretemp.c
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@ -256,10 +256,13 @@ static int adjust_tjmax(struct cpuinfo_x86 *c, u32 id, struct device *dev)
*/
if (host_bridge && host_bridge->vendor == PCI_VENDOR_ID_INTEL) {
for (i = 0; i < ARRAY_SIZE(tjmax_pci_table); i++) {
if (host_bridge->device == tjmax_pci_table[i].device)
if (host_bridge->device == tjmax_pci_table[i].device) {
pci_dev_put(host_bridge);
return tjmax_pci_table[i].tjmax;
}
}
}
pci_dev_put(host_bridge);
for (i = 0; i < ARRAY_SIZE(tjmax_table); i++) {
if (strstr(c->x86_model_id, tjmax_table[i].id))