FEX-Emu/linux
1
0
Fork 0
mirror of https://github.com/FEX-Emu/linux.git synced 2024-12-15 13:22:55 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

crypto: omap-sham - Map SG pages if they are HIGHMEM before accessing

Browse Source 
HIGHMEM pages may not be mapped so we must kmap them before accessing.
This resolves a random OOPs error that was showing up during OpenSSL SHA tests.

Signed-off-by: Joel Fernandes <joelf@ti.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Joel Fernandes 2014-03-07 10:28:46 -06:00 committed by Herbert Xu
parent 6e4e603a9a
commit 26a05489ee
1 changed files with 7 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/crypto/omap-sham.c
View File

@ -636,11 +636,17 @@ static size_t omap_sham_append_buffer(struct omap_sham_reqctx *ctx,
static size_t omap_sham_append_sg(struct omap_sham_reqctx *ctx)
{
size_t count;
const u8 *vaddr;
while (ctx->sg) {
vaddr = kmap_atomic(sg_page(ctx->sg));
count = omap_sham_append_buffer(ctx,
sg_virt(ctx->sg) + ctx->offset,
vaddr + ctx->offset,
ctx->sg->length - ctx->offset);
kunmap_atomic((void *)vaddr);
if (!count)
break;
ctx->offset += count;