Please change the patch version in subject while sending patch.

On 3/26/2019 10:11 AM, Greg Kroah-Hartman wrote:
On Tue, Mar 19, 2019 at 12:34:06PM -0500, Kangjie Lu wrote:
In case create_singlethread_workqueue fails, the fix notifies
callers the error to avoid potential NULL pointer dereferences.

Signed-off-by: Kangjie Lu <k...@umn.edu>


Reviewed-by: Mukesh Ojha <mo...@codeaurora.org>

-Mukesh

---
removed "unlikely"
---
  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 (!workqueue)
+               return -ENOMEM;
        retval = platform_driver_register(&u132_platform_driver);
        return retval;
if platform_driver_register() fails, shouldn't you clean up the
workqueue?  That can be a separate patch, that's not your fault here :)

I have taken care of it.

https://lore.kernel.org/patchwork/patch/1054800/




thanks,

greg k-h

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