Merge commit 'linus/master' into HEAD

[GitHub/mt8127/android_kernel_alcatel_ttab.git] / arch / x86 / kernel / traps.c

diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
index 1e1e27b7d438c4106e23f719335f2aa8f3f6ef5c..5f935f0d5861c625b3ffa6811846e4a480c91282 100644 (file)
--- a/arch/x86/kernel/traps.c
+++ b/arch/x86/kernel/traps.c
@@ -45,6 +45,7 @@
 #include <linux/edac.h>
 #endif
 
+#include <asm/kmemcheck.h>
 #include <asm/stacktrace.h>
 #include <asm/processor.h>
 #include <asm/debugreg.h>
@@ -534,6 +535,10 @@ dotraplinkage void __kprobes do_debug(struct pt_regs *regs, long error_code)
 
        get_debugreg(condition, 6);
 
+       /* Catch kmemcheck conditions first of all! */
+       if (condition & DR_STEP && kmemcheck_trap(regs))
+               return;
+
        /*
         * The processor cleared BTF, so don't mark that we need it set.
         */