[PATCH 6.6 036/322] crypto: octeontx2 - Fix cptvf driver cleanup

Greg Kroah-Hartman
2024-02-03T04:11:44Z

From: Bharat Bhushan <bbhushan2@marvell.com>

[ Upstream commit c480a421a4faf693c38e60b0fe6e554c9a3fee02 ]

This patch fixes following cleanup issues:
- Missing instruction queue free on cleanup. This
will lead to memory leak.
- lfs->lfs_num is set to zero before cleanup, which
will lead to improper cleanup.

Signed-off-by: Bharat Bhushan <bbhushan2@marvell.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/crypto/marvell/octeontx2/otx2_cptlf.c | 6 ++++--
drivers/crypto/marvell/octeontx2/otx2_cptvf_main.c | 3 +++
2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/crypto/marvell/octeontx2/otx2_cptlf.c b/drivers/crypto/marvell/octeontx2/otx2_cptlf.c
index 6edd27ff8c4e..e4bd3f030cec 100644
--- a/drivers/crypto/marvell/octeontx2/otx2_cptlf.c
+++ b/drivers/crypto/marvell/octeontx2/otx2_cptlf.c
@@ -419,8 +419,8 @@ int otx2_cptlf_init(struct otx2_cptlfs_info *lfs, u8 eng_grp_mask, int pri,
return 0;

free_iq:
- otx2_cpt_free_instruction_queues(lfs);
cptlf_hw_cleanup(lfs);
+ otx2_cpt_free_instruction_queues(lfs);
detach_rsrcs:
otx2_cpt_detach_rsrcs_msg(lfs);
clear_lfs_num:
@@ -431,11 +431,13 @@ EXPORT_SYMBOL_NS_GPL(otx2_cptlf_init, CRYPTO_DEV_OCTEONTX2_CPT);

void otx2_cptlf_shutdown(struct otx2_cptlfs_info *lfs)
{
- lfs->lfs_num = 0;
/* Cleanup LFs hardware side */
cptlf_hw_cleanup(lfs);
+ /* Free instruction queues */
+ otx2_cpt_free_instruction_queues(lfs);
/* Send request to detach LFs */
otx2_cpt_detach_rsrcs_msg(lfs);
+ lfs->lfs_num = 0;
}
EXPORT_SYMBOL_NS_GPL(otx2_cptlf_shutdown, CRYPTO_DEV_OCTEONTX2_CPT);

diff --git a/drivers/crypto/marvell/octeontx2/otx2_cptvf_main.c b/drivers/crypto/marvell/octeontx2/otx2_cptvf_main.c
index bac729c885f9..215a1b17b6ce 100644
--- a/drivers/crypto/marvell/octeontx2/otx2_cptvf_main.c
+++ b/drivers/crypto/marvell/octeontx2/otx2_cptvf_main.c
@@ -249,8 +249,11 @@ static void cptvf_lf_shutdown(struct otx2_cptlfs_info *lfs)
otx2_cptlf_unregister_interrupts(lfs);
/* Cleanup LFs software side */
lf_sw_cleanup(lfs);
+ /* Free instruction queues */
+ otx2_cpt_free_instruction_queues(lfs);
/* Send request to detach LFs */
otx2_cpt_detach_rsrcs_msg(lfs);
+ lfs->lfs_num = 0;
}

static int cptvf_lf_init(struct otx2_cptvf_dev *cptvf)
--
2.43.0