Merge branch 'xen-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen

[linux-2.6] / arch / x86 / kernel / reboot_fixups_32.c

diff --git a/arch/x86/kernel/reboot_fixups_32.c b/arch/x86/kernel/reboot_fixups_32.c
index 03e1cce58f499a3712e2e9957a3ef1781d490f2f..8b30b26ad0698161276c2b87c4c64594887aa4ad 100644 (file)
--- a/arch/x86/kernel/reboot_fixups_32.c
+++ b/arch/x86/kernel/reboot_fixups_32.c
@@ -1,6 +1,4 @@
 /*
- * linux/arch/i386/kernel/reboot_fixups.c
- *
  * This is a good place to put board specific reboot fixups.
  *
  * List of supported fixups:
@@ -11,6 +9,7 @@
 
 #include <asm/delay.h>
 #include <linux/pci.h>
+#include <linux/interrupt.h>
 #include <asm/reboot_fixups.h>
 #include <asm/msr.h>
 
@@ -56,6 +55,11 @@ void mach_reboot_fixups(void)
        struct pci_dev *dev;
        int i;
 
+       /* we can be called from sysrq-B code. In such a case it is
+        * prohibited to dig PCI */
+       if (in_interrupt())
+               return;
+
        for (i=0; i < ARRAY_SIZE(fixups_table); i++) {
                cur = &(fixups_table[i]);
                dev = pci_get_device(cur->vendor, cur->device, NULL);