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authorDave Airlie <airlied@redhat.com>2015-03-09 19:58:30 +1000
committerDave Airlie <airlied@redhat.com>2015-03-09 19:58:30 +1000
commita8c6ecb3be7029881f7c95e5e201a629094a4e1a (patch)
treeeb006541f40528f51334eefc725f155c4ce386a6 /arch/x86/kernel/kprobes/opt.c
parent8dd0eb3566711d81bfbe2b4421b33f0dd723cec4 (diff)
parent9eccca0843205f87c00404b663188b88eb248051 (diff)
Merge tag 'v4.0-rc3' into drm-next
Linux 4.0-rc3 backmerge to fix two i915 conflicts, and get some mainline bug fixes needed for my testing box Conflicts: drivers/gpu/drm/i915/i915_drv.h drivers/gpu/drm/i915/intel_display.c
Diffstat (limited to 'arch/x86/kernel/kprobes/opt.c')
-rw-r--r--arch/x86/kernel/kprobes/opt.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/kernel/kprobes/opt.c b/arch/x86/kernel/kprobes/opt.c
index 0dd8d089c315..7b3b9d15c47a 100644
--- a/arch/x86/kernel/kprobes/opt.c
+++ b/arch/x86/kernel/kprobes/opt.c
@@ -259,6 +259,8 @@ static int can_optimize(unsigned long paddr)
*/
return 0;
recovered_insn = recover_probed_instruction(buf, addr);
+ if (!recovered_insn)
+ return 0;
kernel_insn_init(&insn, (void *)recovered_insn, MAX_INSN_SIZE);
insn_get_length(&insn);
/* Another subsystem puts a breakpoint */