From: Juergen Gross Date: Mon, 31 Oct 2016 13:58:41 +0000 (+0100) Subject: xen: make use of xenbus_read_unsigned() in xen-pciback X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=4e81f1caa7ff77f7fd31bd31f84b1a0dcfc8184e;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git xen: make use of xenbus_read_unsigned() in xen-pciback Use xenbus_read_unsigned() instead of xenbus_scanf() when possible. This requires to change the type of the read from int to unsigned, but this case has been wrong before: negative values are not allowed for the modified case. Signed-off-by: Juergen Gross Acked-by: David Vrabel --- diff --git a/drivers/xen/xen-pciback/xenbus.c b/drivers/xen/xen-pciback/xenbus.c index 5ce878c51d03..3f0aee0a068b 100644 --- a/drivers/xen/xen-pciback/xenbus.c +++ b/drivers/xen/xen-pciback/xenbus.c @@ -362,7 +362,7 @@ static int xen_pcibk_reconfigure(struct xen_pcibk_device *pdev) int err = 0; int num_devs; int domain, bus, slot, func; - int substate; + unsigned int substate; int i, len; char state_str[64]; char dev_str[64]; @@ -395,10 +395,8 @@ static int xen_pcibk_reconfigure(struct xen_pcibk_device *pdev) "configuration"); goto out; } - err = xenbus_scanf(XBT_NIL, pdev->xdev->nodename, state_str, - "%d", &substate); - if (err != 1) - substate = XenbusStateUnknown; + substate = xenbus_read_unsigned(pdev->xdev->nodename, state_str, + XenbusStateUnknown); switch (substate) { case XenbusStateInitialising: