From: Yang Yingliang <yangyingliang@xxxxxxxxxx>
[ Upstream commit ac2b9f34f02052709aea7b34bb2a165e1853eb41 ]
If device_register() fails, it should call put_device() to give
up reference, the name allocated in dev_set_name() can be freed
in callback function kobject_cleanup().
Fixes: 5b65781d06ea ("dmaengine: ti: k3-udma-glue: Add support for K3 PKTDMA")
Signed-off-by: Yang Yingliang <yangyingliang@xxxxxxxxxx>
Acked-by: Peter Ujfalusi <peter.ujfalusi@xxxxxxxxx>
Link: https://lore.kernel.org/r/20221020062827.2914148-1-yangyingliang@xxxxxxxxxx
Signed-off-by: Vinod Koul <vkoul@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/dma/ti/k3-udma-glue.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/dma/ti/k3-udma-glue.c b/drivers/dma/ti/k3-udma-glue.c
index 4fdd9f06b723..4f1aeb81e9c7 100644
--- a/drivers/dma/ti/k3-udma-glue.c
+++ b/drivers/dma/ti/k3-udma-glue.c
@@ -299,6 +299,7 @@ struct k3_udma_glue_tx_channel *k3_udma_glue_request_tx_chn(struct device *dev,
ret = device_register(&tx_chn->common.chan_dev);
if (ret) {
dev_err(dev, "Channel Device registration failed %d\n", ret);
+ put_device(&tx_chn->common.chan_dev);
tx_chn->common.chan_dev.parent = NULL;
goto err;
}
@@ -917,6 +918,7 @@ k3_udma_glue_request_rx_chn_priv(struct device *dev, const char *name,
ret = device_register(&rx_chn->common.chan_dev);
if (ret) {
dev_err(dev, "Channel Device registration failed %d\n", ret);
+ put_device(&rx_chn->common.chan_dev);
rx_chn->common.chan_dev.parent = NULL;
goto err;
}
@@ -1048,6 +1050,7 @@ k3_udma_glue_request_remote_rx_chn(struct device *dev, const char *name,
ret = device_register(&rx_chn->common.chan_dev);
if (ret) {
dev_err(dev, "Channel Device registration failed %d\n", ret);
+ put_device(&rx_chn->common.chan_dev);
rx_chn->common.chan_dev.parent = NULL;
goto err;
}
--
2.35.1
