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| author | Jan Beulich <jbeulich@suse.com> | 2011-11-09 10:36:20 +0100 |
|---|---|---|
| committer | Jan Beulich <jbeulich@suse.com> | 2011-11-09 10:36:20 +0100 |
| commit | e501d9f69bfa8dda16fba164dac7922154435c2d (patch) | |
| tree | d4f344c7a4cc12987c0accb12c060d3cfb385d12 /xen/arch/x86/msi.c | |
| parent | 35a5ddf29ab47c772b77e253131b3cb4757b6336 (diff) | |
| download | xen-e501d9f69bfa8dda16fba164dac7922154435c2d.tar.gz xen-e501d9f69bfa8dda16fba164dac7922154435c2d.tar.bz2 xen-e501d9f69bfa8dda16fba164dac7922154435c2d.zip | |
x86/MSI: fix dump_msi() after c/s 24068:6928172f7ded
The function must not blindly take the lock on IRQ descriptors.
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Diffstat (limited to 'xen/arch/x86/msi.c')
| -rw-r--r-- | xen/arch/x86/msi.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/xen/arch/x86/msi.c b/xen/arch/x86/msi.c index bbed64a47c..2d860069c8 100644 --- a/xen/arch/x86/msi.c +++ b/xen/arch/x86/msi.c @@ -1076,6 +1076,9 @@ static void dump_msi(unsigned char key) unsigned long flags; char type; + if ( !irq_desc_initialized(desc) ) + continue; + spin_lock_irqsave(&desc->lock, flags); entry = desc->msi_desc; |