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This is because we are doing memory allocations with GFP_ATOMIC in the beginning which might fail. Any other failure paths might have modified the data or buffers already. Doing a software fallback on them might give incorrect or corrupt results. Fixes: 37b902c603042 ("crypto: ti - Add support for AES-GCM in DTHEv2 driver") Signed-off-by: T Pratham --- drivers/crypto/ti/dthev2-aes.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/crypto/ti/dthev2-aes.c b/drivers/crypto/ti/dthev2-aes.c index ea6e3b246ed1b..bd26c3f438e34 100644 --- a/drivers/crypto/ti/dthev2-aes.c +++ b/drivers/crypto/ti/dthev2-aes.c @@ -1177,7 +1177,7 @@ static int dthe_aead_run(struct crypto_engine *engine, void *areq) memzero_explicit(rctx->src_padding, AES_BLOCK_SIZE); memzero_explicit(rctx->dst_padding, AES_BLOCK_SIZE); - if (ret) + if (ret == -ENOMEM) ret = dthe_aead_do_fallback(req); local_bh_disable(); -- 2.34.1