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由 Kangjie Lu 提交于
[ Upstream commit 92ee77d148bf06d8c52664be4d1b862583fd5c0e ] When acpi_match_device fails, its return value is NULL. Directly using the return value without a check may result in a NULL-pointer dereference. The fix checks if acpi_match_device fails, and if so, returns -EINVAL. Signed-off-by: NKangjie Lu <kjlu@umn.edu> Signed-off-by: NDavid S. Miller <davem@davemloft.net> Signed-off-by: NSasha Levin <sashal@kernel.org> Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>
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