5.15-stable review patch. If anyone has any objections, please let me know.
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From: Dinghao Liu dinghao.liu@zju.edu.cn
[ Upstream commit cab63f64887616e3c4e31cfd8103320be6ebc8d3 ]
put_device() needs to be called on failure of device_register() to give up the reference initialized in it to avoid refcount leak.
Fixes: 3a379bbcea0a ("i3c: Add core I3C infrastructure") Signed-off-by: Dinghao Liu dinghao.liu@zju.edu.cn Link: https://lore.kernel.org/r/20230921082410.25548-1-dinghao.liu@zju.edu.cn Signed-off-by: Alexandre Belloni alexandre.belloni@bootlin.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/i3c/master.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/i3c/master.c b/drivers/i3c/master.c index dfe18dcd008d4..b6abbb0acbbd3 100644 --- a/drivers/i3c/master.c +++ b/drivers/i3c/master.c @@ -1506,9 +1506,11 @@ i3c_master_register_new_i3c_devs(struct i3c_master_controller *master) desc->dev->dev.of_node = desc->boardinfo->of_node;
ret = device_register(&desc->dev->dev); - if (ret) + if (ret) { dev_err(&master->dev, "Failed to add I3C device (err = %d)\n", ret); + put_device(&desc->dev->dev); + } } }