applicom: Fix PCI device refcount leak in applicom_init()

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[ Upstream commit ce4273d89c ]

As comment of pci_get_class() says, it returns a pci_device with its
refcount increased and decreased the refcount for the input parameter
@from if it is not NULL.

If we break the loop in applicom_init() with 'dev' not NULL, we need to
call pci_dev_put() to decrease the refcount. Add the missing
pci_dev_put() to avoid refcount leak.

Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Xiongfeng Wang <wangxiongfeng2@huawei.com>
Link: https://lore.kernel.org/r/20221122114035.24194-1-wangxiongfeng2@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Xiongfeng Wang 2022-11-22 19:40:35 +08:00 • committed by Greg Kroah-Hartman

parent 2e4047f906

commit 8a313090df

1 changed files with 4 additions and 1 deletions

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drivers/char/applicom.c

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