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xen: xen-pciback: fix warning Using plain integer as NULL pointer

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Changes passing function argument 0 to NULL to avoid below sparse
warning

 CHECK   drivers/xen/xen-pciback/xenbus.c
drivers/xen/xen-pciback/xenbus.c:700:51: warning: Using plain integer as
NULL pointer

Signed-off-by: Hariprasad Kelam <hariprasad.kelam@gmail.com>
Reviewed-by: Mukesh Ojha <mojha@codeaurora.org>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
This commit is contained in:
Hariprasad Kelam 2019-04-06 17:59:12 +05:30 committed by Boris Ostrovsky
parent 2ec16bc0fc
commit 515762b916
1 changed files with 1 additions and 1 deletions
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drivers/xen/xen-pciback/xenbus.c
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@ -697,7 +697,7 @@ static int xen_pcibk_xenbus_probe(struct xenbus_device *dev,
/* We need to force a call to our callback here in case /* We need to force a call to our callback here in case
* xend already configured us! * xend already configured us!
*/ */
xen_pcibk_be_watch(&pdev->be_watch, NULL, 0); xen_pcibk_be_watch(&pdev->be_watch, NULL, NULL);
out: out:
return err; return err;