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Subject[PATCH] usb: u132-hcd: fix potential NULL pointer dereference
Date
In case create_singlethread_workqueue fails, the fix notifies
callers the error to avoid potential NULL pointer dereferences.

Signed-off-by: Kangjie Lu <kjlu@umn.edu>
---
drivers/usb/host/u132-hcd.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/usb/host/u132-hcd.c b/drivers/usb/host/u132-hcd.c
index 934584f0a20a..6d5b532b03f8 100644
--- a/drivers/usb/host/u132-hcd.c
+++ b/drivers/usb/host/u132-hcd.c
@@ -3203,6 +3203,8 @@ static int __init u132_hcd_init(void)
return -ENODEV;
printk(KERN_INFO "driver %s\n", hcd_name);
workqueue = create_singlethread_workqueue("u132");
+ if (unlikely(!workqueue))
+ return -ENOMEM;
retval = platform_driver_register(&u132_platform_driver);
return retval;
}
--
2.17.1
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