[PATCH] i3c: master: Set the device name only after we initialize i3c_bus->id

Fredrik Markstrom via B4 Relay devnull+fredrik.markstrom.est.tech at kernel.org
Tue Jan 13 05:08:53 PST 2026


From: Fredrik Markstrom <fredrik.markstrom at est.tech>

The i3c_bus->id field is used to construct the unique name of the I3C
bus device. This field is initialized and assigned its unique value
within the i3c_bus_init() function.

However, the existing code was referencing i3c_bus->id *before* the
call to i3c_bus_init(), leading to all the masters having the same
device name string.

This commit moves the reference to i3c_bus->id to *after* the call to
i3c_bus_init().

Fixes: 9d4f219807d5 ("i3c: fix refcount inconsistency in i3c_master_register")
Signed-off-by: Fredrik Markstrom <fredrik.markstrom at est.tech>
Reviewed-by: Ivar Holmqvist <ivar.holmqvist at est.tech>
---
 drivers/i3c/master.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/i3c/master.c b/drivers/i3c/master.c
index 7f606c871648..1bc3c9068402 100644
--- a/drivers/i3c/master.c
+++ b/drivers/i3c/master.c
@@ -2881,7 +2881,6 @@ int i3c_master_register(struct i3c_master_controller *master,
 	INIT_LIST_HEAD(&master->boardinfo.i3c);
 
 	device_initialize(&master->dev);
-	dev_set_name(&master->dev, "i3c-%d", i3cbus->id);
 
 	master->dev.dma_mask = parent->dma_mask;
 	master->dev.coherent_dma_mask = parent->coherent_dma_mask;
@@ -2891,6 +2890,8 @@ int i3c_master_register(struct i3c_master_controller *master,
 	if (ret)
 		goto err_put_dev;
 
+	dev_set_name(&master->dev, "i3c-%d", i3cbus->id);
+
 	ret = of_populate_i3c_bus(master);
 	if (ret)
 		goto err_put_dev;

---
base-commit: 0f61b1860cc3f52aef9036d7235ed1f017632193
change-id: 20260113-set_i3c_master_name-4fe45d589164

Best regards,
-- 
Fredrik Markstrom <fredrik.markstrom at est.tech>





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