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| author | Miaoqian Lin <linmq006@gmail.com> | 2022-06-05 08:27:22 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-07-12 16:30:50 +0200 |
| commit | 1be11d7f3c890035aa2620f37dda3c230c9eff09 (patch) | |
| tree | 9a6b5ca8fd1f02c0f7ef0b6df9775e25b819fcb7 | |
| parent | b31ab132561c7f1b6459039152b8d09e44eb3565 (diff) | |
| download | linux-stable-1be11d7f3c890035aa2620f37dda3c230c9eff09.tar.gz linux-stable-1be11d7f3c890035aa2620f37dda3c230c9eff09.tar.bz2 linux-stable-1be11d7f3c890035aa2620f37dda3c230c9eff09.zip | |
dmaengine: ti: Add missing put_device in ti_dra7_xbar_route_allocate
commit 615a4bfc426e11dba05c2cf343f9ac752fb381d2 upstream.
of_find_device_by_node() takes reference, we should use put_device()
to release it when not need anymore.
Fixes: a074ae38f859 ("dmaengine: Add driver for TI DMA crossbar on DRA7x")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Acked-by: Peter Ujfalusi <peter.ujfalusi@gmail.com>
Link: https://lore.kernel.org/r/20220605042723.17668-1-linmq006@gmail.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/dma/ti/dma-crossbar.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/dma/ti/dma-crossbar.c b/drivers/dma/ti/dma-crossbar.c index d192362e285e..26cf62af08fc 100644 --- a/drivers/dma/ti/dma-crossbar.c +++ b/drivers/dma/ti/dma-crossbar.c @@ -247,6 +247,7 @@ static void *ti_dra7_xbar_route_allocate(struct of_phandle_args *dma_spec, if (dma_spec->args[0] >= xbar->xbar_requests) { dev_err(&pdev->dev, "Invalid XBAR request number: %d\n", dma_spec->args[0]); + put_device(&pdev->dev); return ERR_PTR(-EINVAL); } @@ -254,12 +255,14 @@ static void *ti_dra7_xbar_route_allocate(struct of_phandle_args *dma_spec, dma_spec->np = of_parse_phandle(ofdma->of_node, "dma-masters", 0); if (!dma_spec->np) { dev_err(&pdev->dev, "Can't get DMA master\n"); + put_device(&pdev->dev); return ERR_PTR(-EINVAL); } map = kzalloc(sizeof(*map), GFP_KERNEL); if (!map) { of_node_put(dma_spec->np); + put_device(&pdev->dev); return ERR_PTR(-ENOMEM); } @@ -271,6 +274,7 @@ static void *ti_dra7_xbar_route_allocate(struct of_phandle_args *dma_spec, dev_err(&pdev->dev, "Run out of free DMA requests\n"); kfree(map); of_node_put(dma_spec->np); + put_device(&pdev->dev); return ERR_PTR(-ENOMEM); } set_bit(map->xbar_out, xbar->dma_inuse); |