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Commit d2d34fb5 authored by Gilad Ben-Yossef's avatar Gilad Ben-Yossef Committed by Herbert Xu
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crypto: ccree - do not copy zero size MLLI table 



When we are given a 0 sized cryptlen and assoclen in
a scatterlist with two entries we were falsely trying to
create a zero length MLLI table, causing the HW to choke.
Don't try to copy a zero sized MLLI table.

Signed-off-by: default avatarGilad Ben-Yossef <gilad@benyossef.com>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 9f31eb6e

drivers/crypto/ccree/cc_aead.c

+2 −2
Original line number Diff line number Diff line
@@ -1196,9 +1196,9 @@ static void cc_mlli_to_sram(struct aead_request *req, 
	struct cc_aead_ctx *ctx = crypto_aead_ctx(tfm);

	struct device *dev = drvdata_to_dev(ctx->drvdata);



	if (req_ctx->assoc_buff_type == CC_DMA_BUF_MLLI ||

	if ((req_ctx->assoc_buff_type == CC_DMA_BUF_MLLI ||

	    req_ctx->data_buff_type == CC_DMA_BUF_MLLI ||

	    !req_ctx->is_single_pass) {

	    !req_ctx->is_single_pass) && req_ctx->mlli_params.mlli_len) {

		dev_dbg(dev, "Copy-to-sram: mlli_dma=%08x, mlli_size=%u\n",

			(unsigned int)ctx->drvdata->mlli_sram_addr,

			req_ctx->mlli_params.mlli_len);