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DMAENGINE: ste_dma40: fix resource leaks in error paths. 

Fix some leaks of allocated descriptors in error paths.

Acked-by: Jonas Aaberg <jonas.aberg@stericsson.com>
Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com>
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Rabin Vincent 2010-10-06 08:20:38 +00:00 committed by Dan Williams
parent a2c15fa4c1
commit 819504f486
1 changed files with 13 additions and 4 deletions
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17
drivers/dma/ste_dma40.c
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@ -1728,6 +1728,8 @@ struct dma_async_tx_descriptor *stedma40_memcpy_sg(struct dma_chan *chan,
return &d40d->txd;
err:
if (d40d)
d40_desc_free(d40c, d40d);
spin_unlock_irqrestore(&d40c->lock, flags);
return NULL;
}
@ -1939,8 +1941,9 @@ static struct dma_async_tx_descriptor *d40_prep_memcpy(struct dma_chan *chan,
err_fill_lli:
dev_err(&d40c->chan.dev->device,
"[%s] Failed filling in PHY LLI\n", __func__);
d40_pool_lli_free(d40d);
err:
if (d40d)
d40_desc_free(d40c, d40d);
spin_unlock_irqrestore(&d40c->lock, flags);
return NULL;
}
@ -2079,10 +2082,9 @@ static struct dma_async_tx_descriptor *d40_prep_slave_sg(struct dma_chan *chan,
spin_lock_irqsave(&d40c->lock, flags);
d40d = d40_desc_get(d40c);
spin_unlock_irqrestore(&d40c->lock, flags);
if (d40d == NULL)
return NULL;
goto err;
if (d40c->log_num != D40_PHY_CHAN)
err = d40_prep_slave_sg_log(d40d, d40c, sgl, sg_len,
@ -2095,7 +2097,7 @@ static struct dma_async_tx_descriptor *d40_prep_slave_sg(struct dma_chan *chan,
"[%s] Failed to prepare %s slave sg job: %d\n",
__func__,
d40c->log_num != D40_PHY_CHAN ? "log" : "phy", err);
return NULL;
goto err;
}
d40d->txd.flags = dma_flags;
@ -2104,7 +2106,14 @@ static struct dma_async_tx_descriptor *d40_prep_slave_sg(struct dma_chan *chan,
d40d->txd.tx_submit = d40_tx_submit;
spin_unlock_irqrestore(&d40c->lock, flags);
return &d40d->txd;
err:
if (d40d)
d40_desc_free(d40c, d40d);
spin_unlock_irqrestore(&d40c->lock, flags);
return NULL;
}
static enum dma_status d40_tx_status(struct dma_chan *chan,