driver core: platform: Emit a warning if a remove callback returned non-zero
The driver core ignores the return value of a bus' remove callback. However a driver returning an error code is a hint that there is a problem, probably a driver author who expects that returning e.g. -EBUSY has any effect. The right thing to do would be to make struct platform_driver::remove() return void. With the immense number of platform drivers this is however a big quest and I hope to prevent at least a few new drivers that return an error code here. Signed-off-by:Uwe Kleine-König <uwe@kleine-koenig.org> Link: https://lore.kernel.org/r/20210207211537.19992-1-uwe@kleine-koenig.org Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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