Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux

driver core: auxiliary bus: Drop dev_pm_domain_detach() call

Starting with commit f99508074e78 ("PM: domains: Detach on
device_unbind_cleanup()"), there is no longer a need to call
dev_pm_domain_detach() in the bus remove function. The
device_unbind_cleanup() function now handles this to avoid
invoking devres cleanup handlers while the PM domain is
powered off, which could otherwise lead to failures as
described in the above-mentioned commit.

Drop the explicit dev_pm_domain_detach() call and rely instead
on the flags passed to dev_pm_domain_attach() to power off the
domain.

Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Link: https://lore.kernel.org/r/20250827100541.926350-1-claudiu.beznea.uj@bp.renesas.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

authored by

Claudiu Beznea and committed by
Greg Kroah-Hartman
eca71038 716cec5f

+3 -7
+3 -7
drivers/base/auxiliary.c
··· 217 217 struct auxiliary_device *auxdev = to_auxiliary_dev(dev); 218 218 int ret; 219 219 220 - ret = dev_pm_domain_attach(dev, PD_FLAG_ATTACH_POWER_ON); 220 + ret = dev_pm_domain_attach(dev, PD_FLAG_ATTACH_POWER_ON | 221 + PD_FLAG_DETACH_POWER_OFF); 221 222 if (ret) { 222 223 dev_warn(dev, "Failed to attach to PM Domain : %d\n", ret); 223 224 return ret; 224 225 } 225 226 226 - ret = auxdrv->probe(auxdev, auxiliary_match_id(auxdrv->id_table, auxdev)); 227 - if (ret) 228 - dev_pm_domain_detach(dev, true); 229 - 230 - return ret; 227 + return auxdrv->probe(auxdev, auxiliary_match_id(auxdrv->id_table, auxdev)); 231 228 } 232 229 233 230 static void auxiliary_bus_remove(struct device *dev) ··· 234 237 235 238 if (auxdrv->remove) 236 239 auxdrv->remove(auxdev); 237 - dev_pm_domain_detach(dev, true); 238 240 } 239 241 240 242 static void auxiliary_bus_shutdown(struct device *dev)