i2c: sprd: fix reference leak when pm_runtime_get_sync fails
mainline inclusion from mainline-v5.13-rc1 commit 3a4f3264 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I94JH2 CVE: CVE-2020-36780 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=3a4f326463117cee3adcb72999ca34a9aaafda93 -------------------------------- [ Upstream commit 3a4f3264 ] The PM reference count is not expected to be incremented on return in sprd_i2c_master_xfer() and sprd_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: 8b9ec071 ("i2c: Add Spreadtrum I2C controller driver") Reported-by:Hulk Robot <hulkci@huawei.com> Signed-off-by:
Qinglang Miao <miaoqinglang@huawei.com> Signed-off-by:
Wolfram Sang <wsa@kernel.org> Signed-off-by:
Sasha Levin <sashal@kernel.org> conflict: drivers/i2c/busses/i2c-sprd.c Signed-off-by:
Liao Chen <liaochen4@huawei.com>
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