[PATCH 6.6 161/166] crypto: testmgr - Hide ENOENT errors better

Greg Kroah-Hartman
2026-04-24T13:40:53Z

From: Herbert Xu <herbert@gondor.apana.org.au>

commit 6318fbe26e67f9c27a1917fe63936b0fc6000373 upstream.

The previous patch removed the ENOENT warning at the point of
allocation, but the overall self-test warning is still there.

Fix all of them by returning zero as the test result. This is
safe because if the algorithm has gone away, then it cannot be
marked as tested.

Fixes: 4eded6d14f5b ("crypto: testmgr - Hide ENOENT errors")
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Hamza Mahfooz <hamzamahfooz@linux.microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
crypto/testmgr.c | 23 +++++++++++------------
1 file changed, 11 insertions(+), 12 deletions(-)

--- a/crypto/testmgr.c
+++ b/crypto/testmgr.c
@@ -1917,7 +1917,7 @@ static int __alg_test_hash(const struct
atfm = crypto_alloc_ahash(driver, type, mask);
if (IS_ERR(atfm)) {
if (PTR_ERR(atfm) == -ENOENT)
- return -ENOENT;
+ return 0;
pr_err("alg: hash: failed to allocate transform for %s: %ld\n",
driver, PTR_ERR(atfm));
return PTR_ERR(atfm);
@@ -2683,7 +2683,7 @@ static int alg_test_aead(const struct al
tfm = crypto_alloc_aead(driver, type, mask);
if (IS_ERR(tfm)) {
if (PTR_ERR(tfm) == -ENOENT)
- return -ENOENT;
+ return 0;
pr_err("alg: aead: failed to allocate transform for %s: %ld\n",
driver, PTR_ERR(tfm));
return PTR_ERR(tfm);
@@ -3262,7 +3262,7 @@ static int alg_test_skcipher(const struc
tfm = crypto_alloc_skcipher(driver, type, mask);
if (IS_ERR(tfm)) {
if (PTR_ERR(tfm) == -ENOENT)
- return -ENOENT;
+ return 0;
pr_err("alg: skcipher: failed to allocate transform for %s: %ld\n",
driver, PTR_ERR(tfm));
return PTR_ERR(tfm);
@@ -3677,7 +3677,7 @@ static int alg_test_cipher(const struct
tfm = crypto_alloc_cipher(driver, type, mask);
if (IS_ERR(tfm)) {
if (PTR_ERR(tfm) == -ENOENT)
- return -ENOENT;
+ return 0;
printk(KERN_ERR "alg: cipher: Failed to load transform for "
"%s: %ld\n", driver, PTR_ERR(tfm));
return PTR_ERR(tfm);
@@ -3703,7 +3703,7 @@ static int alg_test_comp(const struct al
acomp = crypto_alloc_acomp(driver, type, mask);
if (IS_ERR(acomp)) {
if (PTR_ERR(acomp) == -ENOENT)
- return -ENOENT;
+ return 0;
pr_err("alg: acomp: Failed to load transform for %s: %ld\n",
driver, PTR_ERR(acomp));
return PTR_ERR(acomp);
@@ -3717,7 +3717,7 @@ static int alg_test_comp(const struct al
comp = crypto_alloc_comp(driver, type, mask);
if (IS_ERR(comp)) {
if (PTR_ERR(comp) == -ENOENT)
- return -ENOENT;
+ return 0;
pr_err("alg: comp: Failed to load transform for %s: %ld\n",
driver, PTR_ERR(comp));
return PTR_ERR(comp);
@@ -3795,7 +3795,7 @@ static int alg_test_cprng(const struct a
rng = crypto_alloc_rng(driver, type, mask);
if (IS_ERR(rng)) {
if (PTR_ERR(rng) == -ENOENT)
- return -ENOENT;
+ return 0;
printk(KERN_ERR "alg: cprng: Failed to load transform for %s: "
"%ld\n", driver, PTR_ERR(rng));
return PTR_ERR(rng);
@@ -3823,12 +3823,11 @@ static int drbg_cavs_test(const struct d

drng = crypto_alloc_rng(driver, type, mask);
if (IS_ERR(drng)) {
+ kfree_sensitive(buf);
if (PTR_ERR(drng) == -ENOENT)
- goto out_no_rng;
+ return 0;
printk(KERN_ERR "alg: drbg: could not allocate DRNG handle for "
"%s\n", driver);
-out_no_rng:
- kfree_sensitive(buf);
return PTR_ERR(drng);
}

@@ -4072,7 +4071,7 @@ static int alg_test_kpp(const struct alg
tfm = crypto_alloc_kpp(driver, type, mask);
if (IS_ERR(tfm)) {
if (PTR_ERR(tfm) == -ENOENT)
- return -ENOENT;
+ return 0;
pr_err("alg: kpp: Failed to load tfm for %s: %ld\n",
driver, PTR_ERR(tfm));
return PTR_ERR(tfm);
@@ -4302,7 +4301,7 @@ static int alg_test_akcipher(const struc
tfm = crypto_alloc_akcipher(driver, type, mask);
if (IS_ERR(tfm)) {
if (PTR_ERR(tfm) == -ENOENT)
- return -ENOENT;
+ return 0;
pr_err("alg: akcipher: Failed to load tfm for %s: %ld\n",
driver, PTR_ERR(tfm));
return PTR_ERR(tfm);