On Tue, 11 Jul 2023 16:31:45 +0200, Uwe Kleine-König wrote:

The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new() which already returns void. Eventually after all drivers
are converted, .remove_new() is renamed to .remove().

[...]

Applied to powerpc/fixes.

[1/1] powerpc/512x: lpbfifo: Convert to platform remove callback returning void
      https://git.kernel.org/powerpc/c/8739312ed2faa79df61d157ac44fda840646d444

cheers