[PATCH] kprobes: fix build breakage

[pandora-kernel.git] / arch / powerpc / kernel / kprobes.c

diff --git a/arch/powerpc/kernel/kprobes.c b/arch/powerpc/kernel/kprobes.c
index 5368f9c..27b0c40 100644 (file)
--- a/arch/powerpc/kernel/kprobes.c
+++ b/arch/powerpc/kernel/kprobes.c
@@ -35,7 +35,6 @@
 #include <asm/kdebug.h>
 #include <asm/sstep.h>
 
-static DECLARE_MUTEX(kprobe_mutex);
 DEFINE_PER_CPU(struct kprobe *, current_kprobe) = NULL;
 DEFINE_PER_CPU(struct kprobe_ctlblk, kprobe_ctlblk);
 
@@ -54,19 +53,17 @@ int __kprobes arch_prepare_kprobe(struct kprobe *p)
 
        /* insn must be on a special executable page on ppc64 */
        if (!ret) {
-               down(&kprobe_mutex);
                p->ainsn.insn = get_insn_slot();
-               up(&kprobe_mutex);
                if (!p->ainsn.insn)
                        ret = -ENOMEM;
        }
-       return ret;
-}
 
-void __kprobes arch_copy_kprobe(struct kprobe *p)
-{
-       memcpy(p->ainsn.insn, p->addr, MAX_INSN_SIZE * sizeof(kprobe_opcode_t));
-       p->opcode = *p->addr;
+       if (!ret) {
+               memcpy(p->ainsn.insn, p->addr, MAX_INSN_SIZE * sizeof(kprobe_opcode_t));
+               p->opcode = *p->addr;
+       }
+
+       return ret;
 }
 
 void __kprobes arch_arm_kprobe(struct kprobe *p)