* [PATCH 1/3] crypto: sun4i - fix reference leak in sun4i-ss
2020-11-27 9:46 [PATCH 0/3] crypto: sun - fix reference leak Qinglang Miao
@ 2020-11-27 9:46 ` Qinglang Miao
2020-11-27 9:46 ` [PATCH 2/3] crypto: sun8i - fix reference leak in sun8i-ce Qinglang Miao
2020-11-27 9:46 ` [PATCH 3/3] crypto: sun8i - fix reference leak in sun8i-ss Qinglang Miao
2 siblings, 0 replies; 4+ messages in thread
From: Qinglang Miao @ 2020-11-27 9:46 UTC (permalink / raw)
To: Corentin Labbe, Herbert Xu, David S. Miller, Maxime Ripard,
Chen-Yu Tsai, Jernej Skrabec
Cc: linux-crypto, linux-arm-kernel, linux-kernel, Qinglang Miao
pm_runtime_get_sync will increment pm usage counter even it
failed. Forgetting to putting operation will result in a
reference leak here.
A new function pm_runtime_resume_and_get is introduced in
[0] to keep usage counter balanced. So We fix the reference
leak by replacing it with new funtion.
[0] dd8088d5a896 ("PM: runtime: Add pm_runtime_resume_and_get to deal with usage counter")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Qinglang Miao <miaoqinglang@huawei.com>
---
drivers/crypto/allwinner/sun4i-ss/sun4i-ss-cipher.c | 2 +-
drivers/crypto/allwinner/sun4i-ss/sun4i-ss-core.c | 2 +-
drivers/crypto/allwinner/sun4i-ss/sun4i-ss-hash.c | 2 +-
drivers/crypto/allwinner/sun4i-ss/sun4i-ss-prng.c | 2 +-
4 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/crypto/allwinner/sun4i-ss/sun4i-ss-cipher.c b/drivers/crypto/allwinner/sun4i-ss/sun4i-ss-cipher.c
index b72de8939..d0d6671c1 100644
--- a/drivers/crypto/allwinner/sun4i-ss/sun4i-ss-cipher.c
+++ b/drivers/crypto/allwinner/sun4i-ss/sun4i-ss-cipher.c
@@ -504,7 +504,7 @@ int sun4i_ss_cipher_init(struct crypto_tfm *tfm)
crypto_skcipher_reqsize(op->fallback_tfm));
- err = pm_runtime_get_sync(op->ss->dev);
+ err = pm_runtime_resume_and_get(op->ss->dev);
if (err < 0)
goto error_pm;
diff --git a/drivers/crypto/allwinner/sun4i-ss/sun4i-ss-core.c b/drivers/crypto/allwinner/sun4i-ss/sun4i-ss-core.c
index a2b67f7f8..19fd03185 100644
--- a/drivers/crypto/allwinner/sun4i-ss/sun4i-ss-core.c
+++ b/drivers/crypto/allwinner/sun4i-ss/sun4i-ss-core.c
@@ -413,7 +413,7 @@ static int sun4i_ss_probe(struct platform_device *pdev)
* this info could be useful
*/
- err = pm_runtime_get_sync(ss->dev);
+ err = pm_runtime_resume_and_get(ss->dev);
if (err < 0)
goto error_pm;
diff --git a/drivers/crypto/allwinner/sun4i-ss/sun4i-ss-hash.c b/drivers/crypto/allwinner/sun4i-ss/sun4i-ss-hash.c
index 1dff48558..fac21fc1e 100644
--- a/drivers/crypto/allwinner/sun4i-ss/sun4i-ss-hash.c
+++ b/drivers/crypto/allwinner/sun4i-ss/sun4i-ss-hash.c
@@ -27,7 +27,7 @@ int sun4i_hash_crainit(struct crypto_tfm *tfm)
algt = container_of(alg, struct sun4i_ss_alg_template, alg.hash);
op->ss = algt->ss;
- err = pm_runtime_get_sync(op->ss->dev);
+ err = pm_runtime_resume_and_get(op->ss->dev);
if (err < 0)
return err;
diff --git a/drivers/crypto/allwinner/sun4i-ss/sun4i-ss-prng.c b/drivers/crypto/allwinner/sun4i-ss/sun4i-ss-prng.c
index 729aafdbe..848937463 100644
--- a/drivers/crypto/allwinner/sun4i-ss/sun4i-ss-prng.c
+++ b/drivers/crypto/allwinner/sun4i-ss/sun4i-ss-prng.c
@@ -28,7 +28,7 @@ int sun4i_ss_prng_generate(struct crypto_rng *tfm, const u8 *src,
algt = container_of(alg, struct sun4i_ss_alg_template, alg.rng);
ss = algt->ss;
- err = pm_runtime_get_sync(ss->dev);
+ err = pm_runtime_resume_and_get(ss->dev);
if (err < 0)
return err;
--
2.23.0
^ permalink raw reply related [flat|nested] 4+ messages in thread* [PATCH 2/3] crypto: sun8i - fix reference leak in sun8i-ce
2020-11-27 9:46 [PATCH 0/3] crypto: sun - fix reference leak Qinglang Miao
2020-11-27 9:46 ` [PATCH 1/3] crypto: sun4i - fix reference leak in sun4i-ss Qinglang Miao
@ 2020-11-27 9:46 ` Qinglang Miao
2020-11-27 9:46 ` [PATCH 3/3] crypto: sun8i - fix reference leak in sun8i-ss Qinglang Miao
2 siblings, 0 replies; 4+ messages in thread
From: Qinglang Miao @ 2020-11-27 9:46 UTC (permalink / raw)
To: Corentin Labbe, Herbert Xu, David S. Miller, Maxime Ripard,
Chen-Yu Tsai, Jernej Skrabec
Cc: linux-crypto, linux-arm-kernel, linux-kernel, Qinglang Miao
pm_runtime_get_sync will increment pm usage counter even it
failed. Forgetting to putting operation will result in a
reference leak here.
A new function pm_runtime_resume_and_get is introduced in
[0] to keep usage counter balanced. So We fix the reference
leak by replacing it with new funtion.
[0] dd8088d5a896 ("PM: runtime: Add pm_runtime_resume_and_get to deal with usage counter")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Qinglang Miao <miaoqinglang@huawei.com>
---
drivers/crypto/allwinner/sun8i-ce/sun8i-ce-core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-core.c b/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-core.c
index 158422ff5..00194d1d9 100644
--- a/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-core.c
+++ b/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-core.c
@@ -932,7 +932,7 @@ static int sun8i_ce_probe(struct platform_device *pdev)
if (err)
goto error_alg;
- err = pm_runtime_get_sync(ce->dev);
+ err = pm_runtime_resume_and_get(ce->dev);
if (err < 0)
goto error_alg;
--
2.23.0
^ permalink raw reply related [flat|nested] 4+ messages in thread* [PATCH 3/3] crypto: sun8i - fix reference leak in sun8i-ss
2020-11-27 9:46 [PATCH 0/3] crypto: sun - fix reference leak Qinglang Miao
2020-11-27 9:46 ` [PATCH 1/3] crypto: sun4i - fix reference leak in sun4i-ss Qinglang Miao
2020-11-27 9:46 ` [PATCH 2/3] crypto: sun8i - fix reference leak in sun8i-ce Qinglang Miao
@ 2020-11-27 9:46 ` Qinglang Miao
2 siblings, 0 replies; 4+ messages in thread
From: Qinglang Miao @ 2020-11-27 9:46 UTC (permalink / raw)
To: Corentin Labbe, Herbert Xu, David S. Miller, Maxime Ripard,
Chen-Yu Tsai, Jernej Skrabec
Cc: linux-crypto, linux-arm-kernel, linux-kernel, Qinglang Miao
pm_runtime_get_sync will increment pm usage counter even it
failed. Forgetting to putting operation will result in a
reference leak here.
A new function pm_runtime_resume_and_get is introduced in
[0] to keep usage counter balanced. So We fix the reference
leak by replacing it with new funtion.
[0] dd8088d5a896 ("PM: runtime: Add pm_runtime_resume_and_get to deal with usage counter")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Qinglang Miao <miaoqinglang@huawei.com>
---
drivers/crypto/allwinner/sun8i-ss/sun8i-ss-cipher.c | 2 +-
drivers/crypto/allwinner/sun8i-ss/sun8i-ss-core.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-cipher.c b/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-cipher.c
index ed2a69f82..7c355bc2f 100644
--- a/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-cipher.c
+++ b/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-cipher.c
@@ -351,7 +351,7 @@ int sun8i_ss_cipher_init(struct crypto_tfm *tfm)
op->enginectx.op.prepare_request = NULL;
op->enginectx.op.unprepare_request = NULL;
- err = pm_runtime_get_sync(op->ss->dev);
+ err = pm_runtime_resume_and_get(op->ss->dev);
if (err < 0) {
dev_err(op->ss->dev, "pm error %d\n", err);
goto error_pm;
diff --git a/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-core.c b/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-core.c
index e0ddc6847..80e89066d 100644
--- a/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-core.c
+++ b/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-core.c
@@ -753,7 +753,7 @@ static int sun8i_ss_probe(struct platform_device *pdev)
if (err)
goto error_alg;
- err = pm_runtime_get_sync(ss->dev);
+ err = pm_runtime_resume_and_get(ss->dev);
if (err < 0)
goto error_alg;
--
2.23.0
^ permalink raw reply related [flat|nested] 4+ messages in thread