crypto: ccree - fix free of unallocated mlli buffer
In cc_unmap_aead_request(), call dma_pool_free() for mlli buffer only if an item is allocated from the pool and not always if there is a pool allocated. This fixes a kernel panic when trying to free a non-allocated item. Cc: stable@vger.kernel.org Signed-off-by: Hadar Gat <hadar.gat@arm.com> Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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@ -614,10 +614,10 @@ void cc_unmap_aead_request(struct device *dev, struct aead_request *req)
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hw_iv_size, DMA_BIDIRECTIONAL);
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hw_iv_size, DMA_BIDIRECTIONAL);
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}
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}
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/*In case a pool was set, a table was
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/* Release pool */
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*allocated and should be released
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if ((areq_ctx->assoc_buff_type == CC_DMA_BUF_MLLI ||
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*/
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areq_ctx->data_buff_type == CC_DMA_BUF_MLLI) &&
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if (areq_ctx->mlli_params.curr_pool) {
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(areq_ctx->mlli_params.mlli_virt_addr)) {
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dev_dbg(dev, "free MLLI buffer: dma=%pad virt=%pK\n",
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dev_dbg(dev, "free MLLI buffer: dma=%pad virt=%pK\n",
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&areq_ctx->mlli_params.mlli_dma_addr,
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&areq_ctx->mlli_params.mlli_dma_addr,
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areq_ctx->mlli_params.mlli_virt_addr);
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areq_ctx->mlli_params.mlli_virt_addr);
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