From: David S. Miller <davem@davemloft.net>
Date: Thu, 3 Apr 2008 22:07:24 +0000 (-0700)
Subject: [SPARC64]: Fix FPU saving in 64-bit signal handling.
X-Git-Tag: v2.6.25-rc9~54^2~1
X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=7c3cce978e4f933ac13758ec5d2554fc8d0927d2;p=~shefty%2Frdma-dev.git

[SPARC64]: Fix FPU saving in 64-bit signal handling.

The calculation of the FPU reg save area pointer
was wrong.

Based upon an OOPS report from Tom Callaway.

Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/arch/sparc64/kernel/signal.c b/arch/sparc64/kernel/signal.c
index 94a9d64208e..9d51956e8e2 100644
--- a/arch/sparc64/kernel/signal.c
+++ b/arch/sparc64/kernel/signal.c
@@ -357,7 +357,7 @@ static int invalid_frame_pointer(void __user *fp, int fplen)
 static inline int
 save_fpu_state(struct pt_regs *regs, __siginfo_fpu_t __user *fpu)
 {
-	unsigned long *fpregs = (unsigned long *)(regs+1);
+	unsigned long *fpregs = current_thread_info()->fpregs;
 	unsigned long fprs;
 	int err = 0;