mmc: sdhci-pci: Fix possible memory leak caused by missing pci_dev_put()
authorXiongfeng Wang <wangxiongfeng2@huawei.com>
Mon, 14 Nov 2022 08:31:00 +0000 (16:31 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 25 Nov 2022 16:45:53 +0000 (17:45 +0100)
commit4423866d31a06a810db22062ed13389416a66b22
treee54694e090908ba06117d0a28c85892565658657
parent440653a180f53cbc57e1895c8c14ebb349cf5fd8
mmc: sdhci-pci: Fix possible memory leak caused by missing pci_dev_put()

commit 222cfa0118aa68687ace74aab8fdf77ce8fbd7e6 upstream.

pci_get_device() will increase the reference count for the returned
pci_dev. We need to use pci_dev_put() to decrease the reference count
before amd_probe() returns. There is no problem for the 'smbus_dev ==
NULL' branch because pci_dev_put() can also handle the NULL input
parameter case.

Fixes: 659c9bc114a8 ("mmc: sdhci-pci: Build o2micro support in the same module")
Signed-off-by: Xiongfeng Wang <wangxiongfeng2@huawei.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20221114083100.149200-1-wangxiongfeng2@huawei.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/mmc/host/sdhci-pci-core.c