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crypto: mv_cesa - Use resource_size 

Use the resource_size function instead of manually calculating the
resource size. This reduces the chance of introducing off-by-one errors.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Tobias Klauser 2010-05-14 14:58:05 +10:00 committed by Herbert Xu
parent edc774ed0c
commit 5bdd5ded95
1 changed files with 2 additions and 2 deletions
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4
drivers/crypto/mv_cesa.c
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@ -1023,7 +1023,7 @@ static int mv_probe(struct platform_device *pdev)
spin_lock_init(&cp->lock);
crypto_init_queue(&cp->queue, 50);
cp->reg = ioremap(res->start, res->end - res->start + 1);
cp->reg = ioremap(res->start, resource_size(res));
if (!cp->reg) {
ret = -ENOMEM;
goto err;
@ -1034,7 +1034,7 @@ static int mv_probe(struct platform_device *pdev)
ret = -ENXIO;
goto err_unmap_reg;
}
cp->sram_size = res->end - res->start + 1;
cp->sram_size = resource_size(res);
cp->max_req_size = cp->sram_size - SRAM_CFG_SPACE;
cp->sram = ioremap(res->start, cp->sram_size);
if (!cp->sram) {