diff options
Diffstat (limited to 'drivers/dma/sun6i-dma.c')
| -rw-r--r-- | drivers/dma/sun6i-dma.c | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/drivers/dma/sun6i-dma.c b/drivers/dma/sun6i-dma.c index 63a1db38894e..1f92a56fd2b6 100644 --- a/drivers/dma/sun6i-dma.c +++ b/drivers/dma/sun6i-dma.c @@ -562,8 +562,7 @@ static struct dma_async_tx_descriptor *sun6i_dma_prep_dma_memcpy( v_lli = dma_pool_alloc(sdev->pool, GFP_NOWAIT, &p_lli); if (!v_lli) { dev_err(sdev->slave.dev, "Failed to alloc lli memory\n"); - kfree(txd); - return NULL; + goto err_txd_free; } ret = sun6i_dma_cfg_lli(v_lli, src, dest, len, sconfig); @@ -583,6 +582,8 @@ static struct dma_async_tx_descriptor *sun6i_dma_prep_dma_memcpy( err_dma_free: dma_pool_free(sdev->pool, v_lli, p_lli); +err_txd_free: + kfree(txd); return NULL; } @@ -614,17 +615,15 @@ static struct dma_async_tx_descriptor *sun6i_dma_prep_slave_sg( for_each_sg(sgl, sg, sg_len, i) { v_lli = dma_pool_alloc(sdev->pool, GFP_NOWAIT, &p_lli); - if (!v_lli) { - kfree(txd); - return NULL; - } + if (!v_lli) + goto err_lli_free; if (dir == DMA_MEM_TO_DEV) { ret = sun6i_dma_cfg_lli(v_lli, sg_dma_address(sg), sconfig->dst_addr, sg_dma_len(sg), sconfig); if (ret) - goto err_dma_free; + goto err_cur_lli_free; v_lli->cfg |= DMA_CHAN_CFG_DST_IO_MODE | DMA_CHAN_CFG_SRC_LINEAR_MODE | @@ -642,7 +641,7 @@ static struct dma_async_tx_descriptor *sun6i_dma_prep_slave_sg( sg_dma_address(sg), sg_dma_len(sg), sconfig); if (ret) - goto err_dma_free; + goto err_cur_lli_free; v_lli->cfg |= DMA_CHAN_CFG_DST_LINEAR_MODE | DMA_CHAN_CFG_SRC_IO_MODE | @@ -665,8 +664,12 @@ static struct dma_async_tx_descriptor *sun6i_dma_prep_slave_sg( return vchan_tx_prep(&vchan->vc, &txd->vd, flags); -err_dma_free: +err_cur_lli_free: dma_pool_free(sdev->pool, v_lli, p_lli); +err_lli_free: + for (prev = txd->v_lli; prev; prev = prev->v_lli_next) + dma_pool_free(sdev->pool, prev, virt_to_phys(prev)); + kfree(txd); return NULL; } |