* [PATCH] cryptocop: Fix assertion in create_output_descriptors()
@ 2009-10-12 12:56 Roel Kluin
0 siblings, 0 replies; only message in thread
From: Roel Kluin @ 2009-10-12 12:56 UTC (permalink / raw)
To: Mikael Starvik, Jesper Nilsson, linux-cris-kernel, Andrew Morton,
LKML
size_t desc_len cannot be less than 0, test before the subtraction.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
---
diff --git a/arch/cris/arch-v32/drivers/cryptocop.c b/arch/cris/arch-v32/drivers/cryptocop.c
index fd529a0..b70fb34 100644
--- a/arch/cris/arch-v32/drivers/cryptocop.c
+++ b/arch/cris/arch-v32/drivers/cryptocop.c
@@ -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);
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