crypto: drbg - Only fail when jent is unavailable in FIPS mode

When jent initialisation fails for any reason other than ENOENT, the entire drbg fails to initialise, even when we're not in FIPS mode. This is wrong because we can still use the kernel RNG when we're not in FIPS mode. Change it so that it only fails when we are in FIPS mode. Fixes: 57225e6 ("crypto: drbg - Use callback API for random readiness") Signed-off-by: Herbert Xu <[email protected]> Reviewed-by: Stephan Mueller <[email protected]> Signed-off-by: Herbert Xu <[email protected]>
dlitz · Apr 6, 2023 · 686cd97 · 686cd97
1 parent 3fde2fe
commit 686cd97
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/crypto/drbg.c b/crypto/drbg.c
@@ -1546,7 +1546,7 @@ static int drbg_prepare_hrng(struct drbg_state *drbg)
 		const int err = PTR_ERR(drbg->jent);
 
 		drbg->jent = NULL;
-		if (fips_enabled || err != -ENOENT)
+		if (fips_enabled)
 			return err;
 		pr_info("DRBG: Continuing without Jitter RNG\n");
 	}