فهرست منبع

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>
Russell King 15 سال پیش
والد
کامیت
4609a179c9
1فایلهای تغییر یافته به همراه1 افزوده شده و 1 حذف شده
  1. 1 1
      arch/arm/lib/csumpartialcopyuser.S

+ 1 - 1
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