summaryrefslogtreecommitdiffstats
path: root/arch/s390/lib
diff options
context:
space:
mode:
authorMichel Lespinasse <walken@google.com>2011-03-10 18:50:58 -0800
committerThomas Gleixner <tglx@linutronix.de>2011-03-11 12:23:31 +0100
commit8d7718aa082aaf30a0b4989e1f04858952f941bc (patch)
treef006a565d138cec2b497c2bd619f570ad1a11f6e /arch/s390/lib
parent37a9d912b24f96a0591773e6e6c3642991ae5a70 (diff)
futex: Sanitize futex ops argument types
Change futex_atomic_op_inuser and futex_atomic_cmpxchg_inatomic prototypes to use u32 types for the futex as this is the data type the futex core code uses all over the place. Signed-off-by: Michel Lespinasse <walken@google.com> Cc: Darren Hart <darren@dvhart.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Matt Turner <mattst88@gmail.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: David Howells <dhowells@redhat.com> Cc: Tony Luck <tony.luck@intel.com> Cc: Michal Simek <monstr@monstr.eu> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: "James E.J. Bottomley" <jejb@parisc-linux.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Paul Mundt <lethal@linux-sh.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Chris Metcalf <cmetcalf@tilera.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> LKML-Reference: <20110311025058.GD26122@google.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/s390/lib')
-rw-r--r--arch/s390/lib/uaccess.h8
-rw-r--r--arch/s390/lib/uaccess_pt.c12
-rw-r--r--arch/s390/lib/uaccess_std.c6
3 files changed, 13 insertions, 13 deletions
diff --git a/arch/s390/lib/uaccess.h b/arch/s390/lib/uaccess.h
index 89a80674e44..1d2536cb630 100644
--- a/arch/s390/lib/uaccess.h
+++ b/arch/s390/lib/uaccess.h
@@ -12,12 +12,12 @@ extern size_t copy_from_user_std(size_t, const void __user *, void *);
extern size_t copy_to_user_std(size_t, void __user *, const void *);
extern size_t strnlen_user_std(size_t, const char __user *);
extern size_t strncpy_from_user_std(size_t, const char __user *, char *);
-extern int futex_atomic_cmpxchg_std(int *, int __user *, int, int);
-extern int futex_atomic_op_std(int, int __user *, int, int *);
+extern int futex_atomic_cmpxchg_std(u32 *, u32 __user *, u32, u32);
+extern int futex_atomic_op_std(int, u32 __user *, int, int *);
extern size_t copy_from_user_pt(size_t, const void __user *, void *);
extern size_t copy_to_user_pt(size_t, void __user *, const void *);
-extern int futex_atomic_op_pt(int, int __user *, int, int *);
-extern int futex_atomic_cmpxchg_pt(int *, int __user *, int, int);
+extern int futex_atomic_op_pt(int, u32 __user *, int, int *);
+extern int futex_atomic_cmpxchg_pt(u32 *, u32 __user *, u32, u32);
#endif /* __ARCH_S390_LIB_UACCESS_H */
diff --git a/arch/s390/lib/uaccess_pt.c b/arch/s390/lib/uaccess_pt.c
index b3cebcd52f5..74833831417 100644
--- a/arch/s390/lib/uaccess_pt.c
+++ b/arch/s390/lib/uaccess_pt.c
@@ -302,7 +302,7 @@ fault:
: "0" (-EFAULT), "d" (oparg), "a" (uaddr), \
"m" (*uaddr) : "cc" );
-static int __futex_atomic_op_pt(int op, int __user *uaddr, int oparg, int *old)
+static int __futex_atomic_op_pt(int op, u32 __user *uaddr, int oparg, int *old)
{
int oldval = 0, newval, ret;
@@ -335,7 +335,7 @@ static int __futex_atomic_op_pt(int op, int __user *uaddr, int oparg, int *old)
return ret;
}
-int futex_atomic_op_pt(int op, int __user *uaddr, int oparg, int *old)
+int futex_atomic_op_pt(int op, u32 __user *uaddr, int oparg, int *old)
{
int ret;
@@ -354,8 +354,8 @@ int futex_atomic_op_pt(int op, int __user *uaddr, int oparg, int *old)
return ret;
}
-static int __futex_atomic_cmpxchg_pt(int *uval, int __user *uaddr,
- int oldval, int newval)
+static int __futex_atomic_cmpxchg_pt(u32 *uval, u32 __user *uaddr,
+ u32 oldval, u32 newval)
{
int ret;
@@ -370,8 +370,8 @@ static int __futex_atomic_cmpxchg_pt(int *uval, int __user *uaddr,
return ret;
}
-int futex_atomic_cmpxchg_pt(int *uval, int __user *uaddr,
- int oldval, int newval)
+int futex_atomic_cmpxchg_pt(u32 *uval, u32 __user *uaddr,
+ u32 oldval, u32 newval)
{
int ret;
diff --git a/arch/s390/lib/uaccess_std.c b/arch/s390/lib/uaccess_std.c
index 1d6643c0b95..bb1a7eed42c 100644
--- a/arch/s390/lib/uaccess_std.c
+++ b/arch/s390/lib/uaccess_std.c
@@ -255,7 +255,7 @@ size_t strncpy_from_user_std(size_t size, const char __user *src, char *dst)
: "0" (-EFAULT), "d" (oparg), "a" (uaddr), \
"m" (*uaddr) : "cc");
-int futex_atomic_op_std(int op, int __user *uaddr, int oparg, int *old)
+int futex_atomic_op_std(int op, u32 __user *uaddr, int oparg, int *old)
{
int oldval = 0, newval, ret;
@@ -287,8 +287,8 @@ int futex_atomic_op_std(int op, int __user *uaddr, int oparg, int *old)
return ret;
}
-int futex_atomic_cmpxchg_std(int *uval, int __user *uaddr,
- int oldval, int newval)
+int futex_atomic_cmpxchg_std(u32 *uval, u32 __user *uaddr,
+ u32 oldval, u32 newval)
{
int ret;