| Message ID | 20201225083520.22015-1-dinghao.liu@zju.edu.cn (mailing list archive) |
|---|---|
| State | Accepted |
| Headers | show |
| Series | scsi: fnic: Fix memleak in vnic_dev_init_devcmd2 | expand |
Acked-by: Karan Tilak Kumar <kartilak@cisco.com> Regards, Karan -----Original Message----- From: Dinghao Liu <dinghao.liu@zju.edu.cn> Sent: Friday, December 25, 2020 12:35 AM To: dinghao.liu@zju.edu.cn; kjlu@umn.edu Cc: Satish Kharat (satishkh) <satishkh@cisco.com>; Sesidhar Baddela (sebaddel) <sebaddel@cisco.com>; Karan Tilak Kumar (kartilak) <kartilak@cisco.com>; James E.J. Bottomley <jejb@linux.ibm.com>; Martin K. Petersen <martin.petersen@oracle.com>; linux-scsi@vger.kernel.org; linux-kernel@vger.kernel.org Subject: [PATCH] scsi: fnic: Fix memleak in vnic_dev_init_devcmd2 When ioread32() returns 0xFFFFFFFF, we should execute cleanup functions like other error handling paths before returning. Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn> --- drivers/scsi/fnic/vnic_dev.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/scsi/fnic/vnic_dev.c b/drivers/scsi/fnic/vnic_dev.c index a2beee6e09f0..5988c300cc82 100644 --- a/drivers/scsi/fnic/vnic_dev.c +++ b/drivers/scsi/fnic/vnic_dev.c @@ -444,7 +444,8 @@ static int vnic_dev_init_devcmd2(struct vnic_dev *vdev) fetch_index = ioread32(&vdev->devcmd2->wq.ctrl->fetch_index); if (fetch_index == 0xFFFFFFFF) { /* check for hardware gone */ pr_err("error in devcmd2 init"); - return -ENODEV; + err = -ENODEV; + goto err_free_wq; } /* @@ -460,7 +461,7 @@ static int vnic_dev_init_devcmd2(struct vnic_dev *vdev) err = vnic_dev_alloc_desc_ring(vdev, &vdev->devcmd2->results_ring, DEVCMD2_RING_SIZE, DEVCMD2_DESC_SIZE); if (err) - goto err_free_wq; + goto err_disable_wq; vdev->devcmd2->result = (struct devcmd2_result *) vdev->devcmd2->results_ring.descs; @@ -481,8 +482,9 @@ static int vnic_dev_init_devcmd2(struct vnic_dev *vdev) err_free_desc_ring: vnic_dev_free_desc_ring(vdev, &vdev->devcmd2->results_ring); -err_free_wq: +err_disable_wq: vnic_wq_disable(&vdev->devcmd2->wq); +err_free_wq: vnic_wq_free(&vdev->devcmd2->wq); err_free_devcmd2: kfree(vdev->devcmd2); -- 2.17.1
Dinghao, > When ioread32() returns 0xFFFFFFFF, we should execute > cleanup functions like other error handling paths before > returning. Applied to 5.12/scsi-staging, thanks!
On Fri, 25 Dec 2020 16:35:20 +0800, Dinghao Liu wrote: > When ioread32() returns 0xFFFFFFFF, we should execute > cleanup functions like other error handling paths before > returning. Applied to 5.11/scsi-fixes, thanks! [1/1] scsi: fnic: Fix memleak in vnic_dev_init_devcmd2 https://git.kernel.org/mkp/scsi/c/d6e3ae76728c
diff --git a/drivers/scsi/fnic/vnic_dev.c b/drivers/scsi/fnic/vnic_dev.c index a2beee6e09f0..5988c300cc82 100644 --- a/drivers/scsi/fnic/vnic_dev.c +++ b/drivers/scsi/fnic/vnic_dev.c @@ -444,7 +444,8 @@ static int vnic_dev_init_devcmd2(struct vnic_dev *vdev) fetch_index = ioread32(&vdev->devcmd2->wq.ctrl->fetch_index); if (fetch_index == 0xFFFFFFFF) { /* check for hardware gone */ pr_err("error in devcmd2 init"); - return -ENODEV; + err = -ENODEV; + goto err_free_wq; } /* @@ -460,7 +461,7 @@ static int vnic_dev_init_devcmd2(struct vnic_dev *vdev) err = vnic_dev_alloc_desc_ring(vdev, &vdev->devcmd2->results_ring, DEVCMD2_RING_SIZE, DEVCMD2_DESC_SIZE); if (err) - goto err_free_wq; + goto err_disable_wq; vdev->devcmd2->result = (struct devcmd2_result *) vdev->devcmd2->results_ring.descs; @@ -481,8 +482,9 @@ static int vnic_dev_init_devcmd2(struct vnic_dev *vdev) err_free_desc_ring: vnic_dev_free_desc_ring(vdev, &vdev->devcmd2->results_ring); -err_free_wq: +err_disable_wq: vnic_wq_disable(&vdev->devcmd2->wq); +err_free_wq: vnic_wq_free(&vdev->devcmd2->wq); err_free_devcmd2: kfree(vdev->devcmd2);
When ioread32() returns 0xFFFFFFFF, we should execute cleanup functions like other error handling paths before returning. Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn> --- drivers/scsi/fnic/vnic_dev.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-)