diff options
| author | Varun Prakash <varun@chelsio.com> | 2019-12-18 16:45:31 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2019-12-20 02:48:26 +0300 |
| commit | 71482fde704efdd8c3abe0faf34d922c61e8d76b (patch) | |
| tree | 8552373a938dbfee3853a6ec64adae22052fe702 /drivers/scsi/cxgbi/libcxgbi.c | |
| parent | 291c2548458d3a8b326bfa8d7abbba86e036faf7 (diff) | |
| download | linux-71482fde704efdd8c3abe0faf34d922c61e8d76b.tar.xz | |
scsi: libcxgbi: fix NULL pointer dereference in cxgbi_device_destroy()
If cxgb4i_ddp_init() fails then cdev->cdev2ppm will be NULL, so add a check
for NULL pointer before dereferencing it.
Link: https://lore.kernel.org/r/1576676731-3068-1-git-send-email-varun@chelsio.com
Signed-off-by: Varun Prakash <varun@chelsio.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/cxgbi/libcxgbi.c')
| -rw-r--r-- | drivers/scsi/cxgbi/libcxgbi.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/scsi/cxgbi/libcxgbi.c b/drivers/scsi/cxgbi/libcxgbi.c index 0d044c165960..dc9320f37ebf 100644 --- a/drivers/scsi/cxgbi/libcxgbi.c +++ b/drivers/scsi/cxgbi/libcxgbi.c @@ -121,7 +121,8 @@ static inline void cxgbi_device_destroy(struct cxgbi_device *cdev) "cdev 0x%p, p# %u.\n", cdev, cdev->nports); cxgbi_hbas_remove(cdev); cxgbi_device_portmap_cleanup(cdev); - cxgbi_ppm_release(cdev->cdev2ppm(cdev)); + if (cdev->cdev2ppm) + cxgbi_ppm_release(cdev->cdev2ppm(cdev)); if (cdev->pmap.max_connect) cxgbi_free_big_mem(cdev->pmap.port_csk); kfree(cdev); |