Commit 5d59ad6e authored by Christian Lamparter's avatar Christian Lamparter Committed by Herbert Xu

crypto: crypto4xx - fix crypto4xx_build_pdr, crypto4xx_build_sdr leak

If one of the later memory allocations in rypto4xx_build_pdr()
fails: dev->pdr (and/or) dev->pdr_uinfo wouldn't be freed.

crypto4xx_build_sdr() has the same issue with dev->sdr.
Signed-off-by: default avatarChristian Lamparter <chunkeey@googlemail.com>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 40e3b847
......@@ -209,7 +209,7 @@ static u32 crypto4xx_build_pdr(struct crypto4xx_device *dev)
dev->pdr_pa);
return -ENOMEM;
}
memset(dev->pdr, 0, sizeof(struct ce_pd) * PPC4XX_NUM_PD);
memset(dev->pdr, 0, sizeof(struct ce_pd) * PPC4XX_NUM_PD);
dev->shadow_sa_pool = dma_alloc_coherent(dev->core_dev->device,
256 * PPC4XX_NUM_PD,
&dev->shadow_sa_pool_pa,
......@@ -242,13 +242,15 @@ static u32 crypto4xx_build_pdr(struct crypto4xx_device *dev)
static void crypto4xx_destroy_pdr(struct crypto4xx_device *dev)
{
if (dev->pdr != NULL)
if (dev->pdr)
dma_free_coherent(dev->core_dev->device,
sizeof(struct ce_pd) * PPC4XX_NUM_PD,
dev->pdr, dev->pdr_pa);
if (dev->shadow_sa_pool)
dma_free_coherent(dev->core_dev->device, 256 * PPC4XX_NUM_PD,
dev->shadow_sa_pool, dev->shadow_sa_pool_pa);
if (dev->shadow_sr_pool)
dma_free_coherent(dev->core_dev->device,
sizeof(struct sa_state_record) * PPC4XX_NUM_PD,
......@@ -417,12 +419,12 @@ static u32 crypto4xx_build_sdr(struct crypto4xx_device *dev)
static void crypto4xx_destroy_sdr(struct crypto4xx_device *dev)
{
if (dev->sdr != NULL)
if (dev->sdr)
dma_free_coherent(dev->core_dev->device,
sizeof(struct ce_sd) * PPC4XX_NUM_SD,
dev->sdr, dev->sdr_pa);
if (dev->scatter_buffer_va != NULL)
if (dev->scatter_buffer_va)
dma_free_coherent(dev->core_dev->device,
PPC4XX_SD_BUFFER_SIZE * PPC4XX_NUM_SD,
dev->scatter_buffer_va,
......@@ -1223,7 +1225,7 @@ static int crypto4xx_probe(struct platform_device *ofdev)
rc = crypto4xx_build_gdr(core_dev->dev);
if (rc)
goto err_build_gdr;
goto err_build_pdr;
rc = crypto4xx_build_sdr(core_dev->dev);
if (rc)
......@@ -1266,12 +1268,11 @@ static int crypto4xx_probe(struct platform_device *ofdev)
err_request_irq:
irq_dispose_mapping(core_dev->irq);
tasklet_kill(&core_dev->tasklet);
crypto4xx_destroy_sdr(core_dev->dev);
err_build_sdr:
crypto4xx_destroy_sdr(core_dev->dev);
crypto4xx_destroy_gdr(core_dev->dev);
err_build_gdr:
crypto4xx_destroy_pdr(core_dev->dev);
err_build_pdr:
crypto4xx_destroy_pdr(core_dev->dev);
kfree(core_dev->dev);
err_alloc_dev:
kfree(core_dev);
......
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