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authorLinus Torvalds <torvalds@linux-foundation.org>2026-03-07 08:16:48 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2026-03-07 08:16:48 -0800
commite33aafac04bdd8f03300651916386e296eb8020a (patch)
tree0e92f93317fcbf18f3aa766c42692aa1fe382d98 /include
parent0f912c8917e810a4aa81d122a8e7d0a918505ab9 (diff)
parent9de68394a61528d40f575c3e6719cc75c56f62c3 (diff)
Merge tag 'driver-core-7.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core
Pull driver core fix from Danilo Krummrich: - Revert "driver core: enforce device_lock for driver_match_device()": When a device is already present in the system and a driver is registered on the same bus, we iterate over all devices registered on this bus to see if one of them matches. If we come across an already bound one where the corresponding driver crashed while holding the device lock (e.g. in probe()) we can't make any progress anymore. Thus, revert and clarify that an implementer of struct bus_type must not expect match() to be called with the device lock held. * tag 'driver-core-7.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core: Revert "driver core: enforce device_lock for driver_match_device()"
Diffstat (limited to 'include')
-rw-r--r--include/linux/device/bus.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/device/bus.h b/include/linux/device/bus.h
index 99c3c83ea520..63de5f053c33 100644
--- a/include/linux/device/bus.h
+++ b/include/linux/device/bus.h
@@ -35,6 +35,8 @@ struct fwnode_handle;
* otherwise. It may also return error code if determining that
* the driver supports the device is not possible. In case of
* -EPROBE_DEFER it will queue the device for deferred probing.
+ * Note: This callback may be invoked with or without the device
+ * lock held.
* @uevent: Called when a device is added, removed, or a few other things
* that generate uevents to add the environment variables.
* @probe: Called when a new device or driver add to this bus, and callback