[PATCH AUTOSEL 6.6 20/32] nvme-core: fix a memory leak in nvme_ns_info_from_identify()

Sasha Levin
2023-12-04T20:35:19Z

From: Maurizio Lombardi <mlombard@redhat.com>

[ Upstream commit e3139cef8257fcab1725441e2fd5fd0ccb5481b1 ]

In case of error, free the nvme_id_ns structure that was allocated
by nvme_identify_ns().

Signed-off-by: Maurizio Lombardi <mlombard@redhat.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Kanchan Joshi <joshi.k@samsung.com>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/nvme/host/core.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index 21783aa2ee8e1..b4521deb1c716 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -1479,7 +1479,8 @@ static int nvme_ns_info_from_identify(struct nvme_ctrl *ctrl,
if (id->ncap == 0) {
/* namespace not allocated or attached */
info->is_removed = true;
- return -ENODEV;
+ ret = -ENODEV;
+ goto error;
}

info->anagrpid = id->anagrpid;
@@ -1497,8 +1498,10 @@ static int nvme_ns_info_from_identify(struct nvme_ctrl *ctrl,
!memchr_inv(ids->nguid, 0, sizeof(ids->nguid)))
memcpy(ids->nguid, id->nguid, sizeof(ids->nguid));
}
+
+error:
kfree(id);
- return 0;
+ return ret;
}

static int nvme_ns_info_from_id_cs_indep(struct nvme_ctrl *ctrl,
--
2.42.0