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authorAl Viro <viro@ftp.linux.org.uk>2006-09-23 01:37:41 +0100
committerPaul Mackerras <paulus@samba.org>2006-09-26 15:25:33 +1000
commit62034f03380a64c0144b6721f4a2aa55d65346c1 (patch)
tree9f2827b5c69a538e19e5baa41ccc63b46dae40ac /arch/powerpc/oprofile/backtrace.c
parented2bfcd2deeb0970654d06231f254c5d33140062 (diff)
downloadlinux-sh-62034f03380a64c0144b6721f4a2aa55d65346c1.tar.gz
[POWERPC] powerpc oprofile __user annotations
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/oprofile/backtrace.c')
-rw-r--r--arch/powerpc/oprofile/backtrace.c11
1 files changed, 6 insertions, 5 deletions
diff --git a/arch/powerpc/oprofile/backtrace.c b/arch/powerpc/oprofile/backtrace.c
index 75f57bc96b40..b4278cfd1f80 100644
--- a/arch/powerpc/oprofile/backtrace.c
+++ b/arch/powerpc/oprofile/backtrace.c
@@ -11,6 +11,7 @@
#include <linux/sched.h>
#include <asm/processor.h>
#include <asm/uaccess.h>
+#include <asm/compat.h>
#define STACK_SP(STACK) *(STACK)
@@ -26,8 +27,9 @@
static unsigned int user_getsp32(unsigned int sp, int is_first)
{
unsigned int stack_frame[2];
+ void __user *p = compat_ptr(sp);
- if (!access_ok(VERIFY_READ, sp, sizeof(stack_frame)))
+ if (!access_ok(VERIFY_READ, p, sizeof(stack_frame)))
return 0;
/*
@@ -35,8 +37,7 @@ static unsigned int user_getsp32(unsigned int sp, int is_first)
* which means that we've done all that we can do from
* interrupt context.
*/
- if (__copy_from_user_inatomic(stack_frame, (void *)(long)sp,
- sizeof(stack_frame)))
+ if (__copy_from_user_inatomic(stack_frame, p, sizeof(stack_frame)))
return 0;
if (!is_first)
@@ -54,10 +55,10 @@ static unsigned long user_getsp64(unsigned long sp, int is_first)
{
unsigned long stack_frame[3];
- if (!access_ok(VERIFY_READ, sp, sizeof(stack_frame)))
+ if (!access_ok(VERIFY_READ, (void __user *)sp, sizeof(stack_frame)))
return 0;
- if (__copy_from_user_inatomic(stack_frame, (void *)sp,
+ if (__copy_from_user_inatomic(stack_frame, (void __user *)sp,
sizeof(stack_frame)))
return 0;