i2c: xiic: fix reference leak when pm_runtime_get_sync fails
mainline inclusion from mainline-v5.13-rc1 commit a85c5c7a category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I94JCX CVE: CVE-2020-36778 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=a85c5c7a3aa8041777ff691400b4046e56149fd3 -------------------------------- The PM reference count is not expected to be incremented on return in xiic_xfer and xiic_i2c_remove. However, pm_runtime_get_sync will increment the PM reference count even failed. Forgetting to putting operation will result in a reference leak here. Replace it with pm_runtime_resume_and_get to keep usage counter balanced. Fixes: 10b17004 ("i2c: xiic: Fix the clocking across bind unbind") Reported-by:Hulk Robot <hulkci@huawei.com> Signed-off-by:
Qinglang Miao <miaoqinglang@huawei.com> Signed-off-by:
Wolfram Sang <wsa@kernel.org> Conflicts: drivers/i2c/busses/i2c-xiic.c Signed-off-by:
Yang Yingliang <yangyingliang@huawei.com>
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