xen/events: Check that IRQ value passed in is valid.
authorKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Tue, 16 Apr 2013 14:55:18 +0000 (10:55 -0400)
committerKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Tue, 16 Apr 2013 20:05:13 +0000 (16:05 -0400)
commit94032c506720e26402db64987e08168565b57990
treed546dec5591a34940ccc7cebdf5362f4ec8fe0db
parent7918c92ae9638eb8a6ec18e2b4a0de84557cccc8
xen/events: Check that IRQ value passed in is valid.

We naively assume that the IRQ value passed in is correct.
If it is not, then any dereference operation for the 'info'
structure will result in crash - so might as well guard ourselves
and sprinkle copious amounts of WARN_ON.

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
drivers/xen/events.c