1 files changed, 43 insertions, 19 deletions

diff --git a/arch/arm/lib/putuser.S b/arch/arm/lib/putuser.S
index 8620afe54f7..3d73dcb959b 100644
--- a/arch/arm/lib/putuser.S
+++ b/arch/arm/lib/putuser.S
@@ -16,59 +16,83 @@
  * __put_user_X
  *
  * Inputs:	r0 contains the address
+ *		r1 contains the address limit, which must be preserved
  *		r2, r3 contains the value
  * Outputs:	r0 is the error code
  *		lr corrupted
  *
- * No other registers must be altered.  (see include/asm-arm/uaccess.h
+ * No other registers must be altered.  (see <asm/uaccess.h>
  * for specific ASM register usage).
  *
  * Note that ADDR_LIMIT is either 0 or 0xc0000000
  * Note also that it is intended that __put_user_bad is not global.
  */
+#include <linux/linkage.h>
+#include <asm/assembler.h>
 #include <asm/errno.h>
+#include <asm/domain.h>
 
-	.global	__put_user_1
-__put_user_1:
-1:	strbt	r2, [r0]
+ENTRY(__put_user_1)
+	check_uaccess r0, 1, r1, ip, __put_user_bad
+1: TUSER(strb)	r2, [r0]
 	mov	r0, #0
 	mov	pc, lr
+ENDPROC(__put_user_1)
 
-	.global	__put_user_2
-__put_user_2:
+ENTRY(__put_user_2)
+	check_uaccess r0, 2, r1, ip, __put_user_bad
 	mov	ip, r2, lsr #8
+#ifdef CONFIG_THUMB2_KERNEL
 #ifndef __ARMEB__
-2:	strbt	r2, [r0], #1
-3:	strbt	ip, [r0]
+2: TUSER(strb)	r2, [r0]
+3: TUSER(strb)	ip, [r0, #1]
 #else
-2:	strbt	ip, [r0], #1
-3:	strbt	r2, [r0]
+2: TUSER(strb)	ip, [r0]
+3: TUSER(strb)	r2, [r0, #1]
 #endif
+#else	/* !CONFIG_THUMB2_KERNEL */
+#ifndef __ARMEB__
+2: TUSER(strb)	r2, [r0], #1
+3: TUSER(strb)	ip, [r0]
+#else
+2: TUSER(strb)	ip, [r0], #1
+3: TUSER(strb)	r2, [r0]
+#endif
+#endif	/* CONFIG_THUMB2_KERNEL */
 	mov	r0, #0
 	mov	pc, lr
+ENDPROC(__put_user_2)
 
-	.global	__put_user_4
-__put_user_4:
-4:	strt	r2, [r0]
+ENTRY(__put_user_4)
+	check_uaccess r0, 4, r1, ip, __put_user_bad
+4: TUSER(str)	r2, [r0]
 	mov	r0, #0
 	mov	pc, lr
+ENDPROC(__put_user_4)
 
-	.global	__put_user_8
-__put_user_8:
-5:	strt	r2, [r0], #4
-6:	strt	r3, [r0]
+ENTRY(__put_user_8)
+	check_uaccess r0, 8, r1, ip, __put_user_bad
+#ifdef CONFIG_THUMB2_KERNEL
+5: TUSER(str)	r2, [r0]
+6: TUSER(str)	r3, [r0, #4]
+#else
+5: TUSER(str)	r2, [r0], #4
+6: TUSER(str)	r3, [r0]
+#endif
 	mov	r0, #0
 	mov	pc, lr
+ENDPROC(__put_user_8)
 
 __put_user_bad:
 	mov	r0, #-EFAULT
 	mov	pc, lr
+ENDPROC(__put_user_bad)
 
-.section __ex_table, "a"
+.pushsection __ex_table, "a"
 	.long	1b, __put_user_bad
 	.long	2b, __put_user_bad
 	.long	3b, __put_user_bad
 	.long	4b, __put_user_bad
 	.long	5b, __put_user_bad
 	.long	6b, __put_user_bad
-.previous
+.popsection