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Commit cda1c5af authored by Roel Kluin's avatar Roel Kluin Committed by Linus Torvalds
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cryptocop: fix assertion in create_output_descriptors() 



size_t desc_len cannot be less than 0, test before the subtraction.

Signed-off-by: default avatarRoel Kluin <roel.kluin@gmail.com>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Jesper Nilsson <jesper.nilsson@axis.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent ba875ba6

arch/cris/arch-v32/drivers/cryptocop.c

+1 −1
Original line number Diff line number Diff line
@@ -628,9 +628,9 @@ static int create_output_descriptors(struct cryptocop_operation *operation, int 
		cdesc->dma_descr->buf = (char*)virt_to_phys(operation->tfrm_op.indata[*iniov_ix].iov_base + *iniov_offset);

		cdesc->dma_descr->after = cdesc->dma_descr->buf + dlength;



		assert(desc_len >= dlength);

		desc_len -= dlength;

		*iniov_offset += dlength;

		assert(desc_len >= 0);

		if (*iniov_offset >= operation->tfrm_op.indata[*iniov_ix].iov_len) {

			*iniov_offset = 0;

			++(*iniov_ix);