diff options
| author | Colin Ian King | 2017-09-08 15:13:33 +0100 |
|---|---|---|
| committer | Oded Gabbay | 2017-09-08 15:13:33 +0100 |
| commit | bfaa1ce809bbcd12b1399409ab1dbf0cdaba6e27 (patch) | |
| tree | d9756188eedec6d415652f8d7cad20d229f61dc0 | |
| parent | 56eac98b8a0bbb72132340dbfedc912c68c4bd56 (diff) | |
drm/amdkfd: check for null dev to avoid a null pointer dereference
The call to kfd_device_by_id can potentially return null, so check that
dev is null and return with -EINVAL to avoid a null pointer dereference.
Detected by CoverityScan CID#1454629 ("Dereference null return value")
Fixes: 5d71dbc3a588 ("drm/amdkfd: Implement image tiling mode support v2")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_chardev.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c index e4a8c2e52cb2..660b3fbade41 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c @@ -892,6 +892,8 @@ static int kfd_ioctl_get_tile_config(struct file *filep, int err = 0; dev = kfd_device_by_id(args->gpu_id); + if (!dev) + return -EINVAL; dev->kfd2kgd->get_tile_config(dev->kgd, &config); |