On Sat, Apr 10, 2021 at 05:49:17PM +0800, Hui Tang wrote: > Currently, an invalid dma address may be unmapped when calling > 'xx_data_clr_all' in error path, so check dma address of sqe in/out > whether it has been mapped before calling 'dma_free_coherent' or > 'dma_unmap_single'. > > An abnormal case is as follows: > hpre_curve25519_compute_value > -> hpre_curve25519_src_init > -> hpre_curve25519_hw_data_clr_all > > Fixes: a9214b0b6ed2(crypto: hisilicon - fix the check on dma address) > Signed-off-by: Hui Tang <tanghui20@xxxxxxxxxx> > --- > drivers/crypto/hisilicon/hpre/hpre_crypto.c | 18 ++++++++++++++++++ > 1 file changed, 18 insertions(+) This triggers new sparse warnings. Cheers, -- Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
