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crypto: amlogic - fix two resources leak 

This patch fixes two resources leak that occur on error path.

Reported-by: coverity-bot <keescook+coverity-bot@chromium.org>
Addresses-Coverity-ID: 1487403 ("RESOURCE_LEAK")
Addresses-Coverity-ID: 1487401 ("Resource leaks")
Fixes: 48fe583fe5 ("crypto: amlogic - Add crypto accelerator for amlogic GXL")
Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Corentin Labbe 2019-11-08 09:45:17 +00:00 committed by Herbert Xu
parent b8151220f3
commit 56601574c1
1 changed files with 6 additions and 4 deletions
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10
drivers/crypto/amlogic/amlogic-gxl-cipher.c
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@ -131,7 +131,8 @@ static int meson_cipher(struct skcipher_request *areq)
if (areq->iv && ivsize > 0) {
if (ivsize > areq->cryptlen) {
dev_err(mc->dev, "invalid ivsize=%d vs len=%d\n", ivsize, areq->cryptlen);
return -EINVAL;
err = -EINVAL;
goto theend;
}
memcpy(bkeyiv + 32, areq->iv, ivsize);
keyivlen = 48;
@ -151,9 +152,10 @@ static int meson_cipher(struct skcipher_request *areq)
phykeyiv = dma_map_single(mc->dev, bkeyiv, keyivlen,
DMA_TO_DEVICE);
if (dma_mapping_error(mc->dev, phykeyiv)) {
err = dma_mapping_error(mc->dev, phykeyiv);
if (err) {
dev_err(mc->dev, "Cannot DMA MAP KEY IV\n");
return -EFAULT;
goto theend;
}
tloffset = 0;
@ -245,7 +247,6 @@ static int meson_cipher(struct skcipher_request *areq)
if (areq->iv && ivsize > 0) {
if (rctx->op_dir == MESON_DECRYPT) {
memcpy(areq->iv, backup_iv, ivsize);
kzfree(backup_iv);
} else {
scatterwalk_map_and_copy(areq->iv, areq->dst,
areq->cryptlen - ivsize,
@ -254,6 +255,7 @@ static int meson_cipher(struct skcipher_request *areq)
}
theend:
kzfree(bkeyiv);
kzfree(backup_iv);
return err;
}