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85 lines
2.7 KiB
Diff
85 lines
2.7 KiB
Diff
From 5d59ad6eea82ef8df92b4109615a0dde9d8093e9 Mon Sep 17 00:00:00 2001
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From: Christian Lamparter <chunkeey@googlemail.com>
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Date: Fri, 25 Aug 2017 15:47:24 +0200
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Subject: [PATCH 11/25] crypto: crypto4xx - fix crypto4xx_build_pdr,
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crypto4xx_build_sdr leak
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If one of the later memory allocations in rypto4xx_build_pdr()
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fails: dev->pdr (and/or) dev->pdr_uinfo wouldn't be freed.
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crypto4xx_build_sdr() has the same issue with dev->sdr.
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Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
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Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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---
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drivers/crypto/amcc/crypto4xx_core.c | 17 +++++++++--------
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1 file changed, 9 insertions(+), 8 deletions(-)
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--- a/drivers/crypto/amcc/crypto4xx_core.c
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+++ b/drivers/crypto/amcc/crypto4xx_core.c
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@@ -209,7 +209,7 @@ static u32 crypto4xx_build_pdr(struct cr
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dev->pdr_pa);
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return -ENOMEM;
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}
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- memset(dev->pdr, 0, sizeof(struct ce_pd) * PPC4XX_NUM_PD);
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+ memset(dev->pdr, 0, sizeof(struct ce_pd) * PPC4XX_NUM_PD);
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dev->shadow_sa_pool = dma_alloc_coherent(dev->core_dev->device,
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256 * PPC4XX_NUM_PD,
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&dev->shadow_sa_pool_pa,
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@@ -242,13 +242,15 @@ static u32 crypto4xx_build_pdr(struct cr
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static void crypto4xx_destroy_pdr(struct crypto4xx_device *dev)
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{
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- if (dev->pdr != NULL)
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+ if (dev->pdr)
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dma_free_coherent(dev->core_dev->device,
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sizeof(struct ce_pd) * PPC4XX_NUM_PD,
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dev->pdr, dev->pdr_pa);
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+
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if (dev->shadow_sa_pool)
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dma_free_coherent(dev->core_dev->device, 256 * PPC4XX_NUM_PD,
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dev->shadow_sa_pool, dev->shadow_sa_pool_pa);
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+
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if (dev->shadow_sr_pool)
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dma_free_coherent(dev->core_dev->device,
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sizeof(struct sa_state_record) * PPC4XX_NUM_PD,
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@@ -417,12 +419,12 @@ static u32 crypto4xx_build_sdr(struct cr
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static void crypto4xx_destroy_sdr(struct crypto4xx_device *dev)
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{
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- if (dev->sdr != NULL)
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+ if (dev->sdr)
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dma_free_coherent(dev->core_dev->device,
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sizeof(struct ce_sd) * PPC4XX_NUM_SD,
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dev->sdr, dev->sdr_pa);
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- if (dev->scatter_buffer_va != NULL)
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+ if (dev->scatter_buffer_va)
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dma_free_coherent(dev->core_dev->device,
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PPC4XX_SD_BUFFER_SIZE * PPC4XX_NUM_SD,
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dev->scatter_buffer_va,
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@@ -1223,7 +1225,7 @@ static int crypto4xx_probe(struct platfo
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rc = crypto4xx_build_gdr(core_dev->dev);
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if (rc)
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- goto err_build_gdr;
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+ goto err_build_pdr;
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rc = crypto4xx_build_sdr(core_dev->dev);
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if (rc)
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@@ -1266,12 +1268,11 @@ err_iomap:
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err_request_irq:
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irq_dispose_mapping(core_dev->irq);
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tasklet_kill(&core_dev->tasklet);
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- crypto4xx_destroy_sdr(core_dev->dev);
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err_build_sdr:
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+ crypto4xx_destroy_sdr(core_dev->dev);
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crypto4xx_destroy_gdr(core_dev->dev);
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-err_build_gdr:
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- crypto4xx_destroy_pdr(core_dev->dev);
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err_build_pdr:
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+ crypto4xx_destroy_pdr(core_dev->dev);
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kfree(core_dev->dev);
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err_alloc_dev:
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kfree(core_dev);
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