diff options
| author | Lizhi Hou <lizhi.hou@amd.com> | 2026-07-07 10:23:07 -0700 |
|---|---|---|
| committer | Lizhi Hou <lizhi.hou@amd.com> | 2026-07-07 20:49:10 -0700 |
| commit | 0f092793a7b527dfb2cde323d4e5630d43447b84 (patch) | |
| tree | 25b191fa69ccb8fe674c7f478e08bce2439c92c4 /drivers/accel/amdxdna | |
| parent | 2f8b8593c7832fad655290cef9e99af05b1b52b3 (diff) | |
accel/amdxdna: Check drmm_mutex_init() return value
drmm_mutex_init() may fail and return an error. Check the return value
and abort initialization if mutex creation fails.
Fixes: 8c9ff1b181ba ("accel/amdxdna: Add a new driver for AMD AI Engine")
Reviewed-by: Max Zhen <max.zhen@amd.com>
Signed-off-by: Lizhi Hou <lizhi.hou@amd.com>
Link: https://patch.msgid.link/20260707172307.539676-1-lizhi.hou@amd.com
Diffstat (limited to 'drivers/accel/amdxdna')
| -rw-r--r-- | drivers/accel/amdxdna/amdxdna_pci_drv.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/accel/amdxdna/amdxdna_pci_drv.c b/drivers/accel/amdxdna/amdxdna_pci_drv.c index e94d8290a807..86e9c230875a 100644 --- a/drivers/accel/amdxdna/amdxdna_pci_drv.c +++ b/drivers/accel/amdxdna/amdxdna_pci_drv.c @@ -373,7 +373,10 @@ static int amdxdna_probe(struct pci_dev *pdev, const struct pci_device_id *id) if (ret) return ret; - drmm_mutex_init(ddev, &xdna->dev_lock); + ret = drmm_mutex_init(ddev, &xdna->dev_lock); + if (ret) + return ret; + init_rwsem(&xdna->notifier_lock); INIT_LIST_HEAD(&xdna->client_list); pci_set_drvdata(pdev, xdna); |