Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6

* 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6:
  [SPARC64]: Fix missing load-twin usage in Niagara-1 memcpy.
  [SPARC64]: Fix put_user() calls in binfmt_aout32.c
  [SPARC]: Fix EBUS use of uninitialized variable.

arch/sparc/kernel/ebus.c

@@ -156,6 +156,8 @@ void __init fill_ebus_device(struct device_node *dp, struct linux_ebus_device *d
 	dev->prom_node = dp;
 
 	regs = of_get_property(dp, "reg", &len);
+	if (!regs)
+		len = 0;
 	if (len % sizeof(struct linux_prom_registers)) {
 		prom_printf("UGH: proplen for %s was %d, need multiple of %d\n",
 			    dev->prom_node->name, len,

arch/sparc64/kernel/binfmt_aout32.c

@@ -177,7 +177,7 @@ static u32 __user *create_aout32_tables(char __user *p, struct linux_binprm *bpr
 			get_user(c,p++);
 		} while (c);
 	}
-	put_user(NULL,argv);
+	put_user(0,argv);
 	current->mm->arg_end = current->mm->env_start = (unsigned long) p;
 	while (envc-->0) {
 		char c;
@@ -186,7 +186,7 @@ static u32 __user *create_aout32_tables(char __user *p, struct linux_binprm *bpr
 			get_user(c,p++);
 		} while (c);
 	}
-	put_user(NULL,envp);
+	put_user(0,envp);
 	current->mm->env_end = (unsigned long) p;
 	return sp;
 }

arch/sparc64/kernel/ebus.c

@@ -375,7 +375,10 @@ static void __init fill_ebus_device(struct device_node *dp, struct linux_ebus_de
 		dev->num_addrs = 0;
 		dev->num_irqs = 0;
 	} else {
-		(void) of_get_property(dp, "reg", &len);
+		const int *regs = of_get_property(dp, "reg", &len);
+
+		if (!regs)
+			len = 0;
 		dev->num_addrs = len / sizeof(struct linux_prom_registers);
 
 		for (i = 0; i < dev->num_addrs; i++)

arch/sparc64/lib/NGcopy_from_user.S

 /* NGcopy_from_user.S: Niagara optimized copy from userspace.
  *
- * Copyright (C) 2006 David S. Miller (davem@davemloft.net)
+ * Copyright (C) 2006, 2007 David S. Miller (davem@davemloft.net)
  */
 
 #define EX_LD(x)		\
@@ -8,8 +8,8 @@
 	.section .fixup;	\
 	.align 4;		\
 99:	wr	%g0, ASI_AIUS, %asi;\
-	retl;			\
-	 mov	1, %o0;		\
+	ret;			\
+	 restore %g0, 1, %o0;	\
 	.section __ex_table,"a";\
 	.align 4;		\
 	.word 98b, 99b;		\
@@ -24,7 +24,7 @@
 #define LOAD(type,addr,dest)	type##a [addr] ASI_AIUS, dest
 #define LOAD_TWIN(addr_reg,dest0,dest1)	\
 	ldda [addr_reg] ASI_BLK_INIT_QUAD_LDD_AIUS, dest0
-#define EX_RETVAL(x)		0
+#define EX_RETVAL(x)		%g0
 
 #ifdef __KERNEL__
 #define PREAMBLE					\

arch/sparc64/lib/NGcopy_to_user.S

 /* NGcopy_to_user.S: Niagara optimized copy to userspace.
  *
- * Copyright (C) 2006 David S. Miller (davem@davemloft.net)
+ * Copyright (C) 2006, 2007 David S. Miller (davem@davemloft.net)
  */
 
 #define EX_ST(x)		\
@@ -8,8 +8,8 @@
 	.section .fixup;	\
 	.align 4;		\
 99:	wr	%g0, ASI_AIUS, %asi;\
-	retl;			\
-	 mov	1, %o0;		\
+	ret;			\
+	 restore %g0, 1, %o0;	\
 	.section __ex_table,"a";\
 	.align 4;		\
 	.word 98b, 99b;		\
@@ -23,7 +23,7 @@
 #define FUNC_NAME		NGcopy_to_user
 #define STORE(type,src,addr)	type##a src, [addr] ASI_AIUS
 #define STORE_ASI		ASI_BLK_INIT_QUAD_LDD_AIUS
-#define EX_RETVAL(x)		0
+#define EX_RETVAL(x)		%g0
 
 #ifdef __KERNEL__
 	/* Writing to %asi is _expensive_ so we hardcode it.