Al Viro c9efe51165 fix a kmap leak in virtio_console
While we are at it, don't do kmap() under kmap_atomic(), *especially*
for a page we'd allocated with GFP_KERNEL.  It's spelled "page_address",
and had that been more than that, we'd have a real trouble - kmap_high()
can block, and doing that while holding kmap_atomic() is a Bad Idea(tm).

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-02-09 15:21:16 -05:00
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