diff options
| author | Dan Carpenter <dan.carpenter@oracle.com> | 2021-08-27 11:54:10 +0300 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2021-08-31 19:20:23 +0300 |
| commit | 11a427be2c4749954e8b868ef5301dc65ca5a14b (patch) | |
| tree | 23b4fd99e535bd05dc6e74607aceea90b2dee089 /drivers/dma/sh/rz-dmac.c | |
| parent | 1e008336b9f590eb749ac96ccef4ea0301f79619 (diff) | |
| download | linux-11a427be2c4749954e8b868ef5301dc65ca5a14b.tar.xz | |
dmaengine: sh: fix some NULL dereferences
The dma_free_coherent() function needs a valid device pointer or it will
crash.
Fixes: 550c591a89a1 ("dmaengine: sh: Add DMAC driver for RZ/G2L SoC")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20210827085410.GA9183@kili
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/dma/sh/rz-dmac.c')
| -rw-r--r-- | drivers/dma/sh/rz-dmac.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/dma/sh/rz-dmac.c b/drivers/dma/sh/rz-dmac.c index 3d1c239de306..f9f30cbeccbe 100644 --- a/drivers/dma/sh/rz-dmac.c +++ b/drivers/dma/sh/rz-dmac.c @@ -919,7 +919,7 @@ err: for (i = 0; i < channel_num; i++) { struct rz_dmac_chan *channel = &dmac->channels[i]; - dma_free_coherent(NULL, + dma_free_coherent(&pdev->dev, sizeof(struct rz_lmdesc) * DMAC_NR_LMDESC, channel->lmdesc.base, channel->lmdesc.base_dma); @@ -936,7 +936,7 @@ static int rz_dmac_remove(struct platform_device *pdev) for (i = 0; i < dmac->n_channels; i++) { struct rz_dmac_chan *channel = &dmac->channels[i]; - dma_free_coherent(NULL, + dma_free_coherent(&pdev->dev, sizeof(struct rz_lmdesc) * DMAC_NR_LMDESC, channel->lmdesc.base, channel->lmdesc.base_dma); |