CVE-2022-49650

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> dmaengine: qcom: bam_dma: fix runtime PM underflow<br /> <br /> Commit dbad41e7bb5f ("dmaengine: qcom: bam_dma: check if the runtime pm enabled")<br /> caused unbalanced pm_runtime_get/put() calls when the bam is<br /> controlled remotely. This commit reverts it and just enables pm_runtime<br /> in all cases, the clk_* functions already just nop when the clock is NULL.<br /> <br /> Also clean up a bit by removing unnecessary bamclk null checks.