xen: make use of xenbus_read_unsigned() in xen-netback

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Use xenbus_read_unsigned() instead of xenbus_scanf() when possible.
This requires to change the type of some reads from int to unsigned,
but these cases have been wrong before: negative values are not allowed
for the modified cases.

Cc: wei.liu2@citrix.com
Cc: paul.durrant@citrix.com
Cc: netdev@vger.kernel.org

Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Paul Durrant <paul.durrant@citrix.com>
Acked-by: David Vrabel <david.vrabel@citrix.com>

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This commit is contained in:

Juergen Gross 2016-10-31 14:58:41 +01:00

parent 81362c6f15

commit f95842e7a9

1 changed files with 14 additions and 36 deletions

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drivers/net/xen-netback/xenbus.c

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