ARM: Fix csum_partial_copy_from_user()

Using the parent functions frame pointer to access our arguments is
completely wrong, whether or not we're building with frame pointers
or not.  What we should be using is the stack pointer to get at the
word above the registers we stacked ourselves.

Reported-by: Bosko Radivojevic <bosko.radivojevic@gmail.com>
Tested-by: Bosko Radivojevic <bosko.radivojevic@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 1 insertions, 1 deletions

diff --git a/arch/arm/lib/csumpartialcopyuser.S b/arch/arm/lib/csumpartialcopyuser.S
index 59ff6fdc1e63..7d08b43d2c0e 100644
--- a/arch/arm/lib/csumpartialcopyuser.S
+++ b/arch/arm/lib/csumpartialcopyuser.S
@@ -71,7 +71,7 @@
                 .pushsection .fixup,"ax"
                 .align  4
 9001:           mov     r4, #-EFAULT
-                ldr     r5, [fp, #4]            @ *err_ptr
+                ldr     r5, [sp, #8*4]          @ *err_ptr
                 str     r4, [r5]
                 ldmia   sp, {r1, r2}            @ retrieve dst, len
                 add     r2, r2, r1