[PATCH 3/3] powerpc: fix setting the wrong thread_struct for ptrace get/set VSX regs
From: Michael Neuling <hidden>
Date: 2008-07-28 15:13:14
In PTRACE_GET/SETVSRREGS, we should be using the thread we are ptracing rather than current. Signed-off-by: Michael Neuling <redacted> --- arch/powerpc/kernel/ptrace.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) Index: linux-2.6-ozlabs/arch/powerpc/kernel/ptrace.c ===================================================================
--- linux-2.6-ozlabs.orig/arch/powerpc/kernel/ptrace.c
+++ linux-2.6-ozlabs/arch/powerpc/kernel/ptrace.c@@ -374,7 +374,7 @@ static int vsr_get(struct task_struct *t flush_vsx_to_thread(target); for (i = 0; i < 32 ; i++) - buf[i] = current->thread.fpr[i][TS_VSRLOWOFFSET]; + buf[i] = target->thread.fpr[i][TS_VSRLOWOFFSET]; ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf, buf, 0, 32 * sizeof(double));
@@ -393,7 +393,7 @@ static int vsr_set(struct task_struct *t ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, buf, 0, 32 * sizeof(double)); for (i = 0; i < 32 ; i++) - current->thread.fpr[i][TS_VSRLOWOFFSET] = buf[i]; + target->thread.fpr[i][TS_VSRLOWOFFSET] = buf[i]; return ret;