linux-stable-rt/arch/ia64/kvm
Julia Lawall cab7a1eeeb KVM: ia64: Fix irq disabling leak in error handling code
There is a call to local_irq_restore in the normal exit case, so it would
seem that there should be one on an error return as well.

The semantic patch that finds this problem is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@@
expression l;
expression E,E1,E2;
@@

local_irq_save(l);
... when != local_irq_restore(l)
    when != spin_unlock_irqrestore(E,l)
    when any
    when strict
(
if (...) { ... when != local_irq_restore(l)
               when != spin_unlock_irqrestore(E1,l)
+   local_irq_restore(l);
    return ...;
}
|
if (...)
+   {local_irq_restore(l);
    return ...;
+   }
|
spin_unlock_irqrestore(E2,l);
|
local_irq_restore(l);
)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-27 11:35:32 +03:00
..
Kconfig
Makefile KVM: Add coalesced MMIO support (ia64 part) 2008-07-20 12:42:31 +03:00
asm-offsets.c
kvm-ia64.c KVM: ia64: Fix irq disabling leak in error handling code 2008-07-27 11:35:32 +03:00
kvm_fw.c
kvm_minstate.h
lapic.h
memcpy.S
memset.S
misc.h
mmio.c
optvfault.S
process.c
trampoline.S
vcpu.c
vcpu.h
vmm.c
vmm_ivt.S
vti.h
vtlb.c