dmaengine: tegra210-adma: Add error logging on failure paths

Add dev_err/dev_err_probe logging across failure paths to improve
debuggability of DMA errors during runtime and probe.

Use return dev_err_probe() pattern where no cleanup is required in the
probe function. On error paths that need explicit unwind, store the
dev_err_probe() return value in ret before jumping to the cleanup label.
Also convert existing dev_err calls in probe to dev_err_probe for
consistency, and use dev_err in non-probe functions.

Keep explicit runtime PM and DMA registration unwind instead of managed or
scoped cleanup. The scoped runtime PM guard releases the usage count with
pm_runtime_put(), while this probe error path needs pm_runtime_put_sync()
before pm_runtime_disable(). The OF DMA registration failure path also
needs to unregister the DMA engine before dropping the runtime PM reference.

Signed-off-by: Sheetal <sheetal@nvidia.com>
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Link: https://patch.msgid.link/20260517163045.363444-1-sheetal@nvidia.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

0 files changed, 0 insertions, 0 deletions