[PATCH] consolidate sys_shmat

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 14 insertions, 0 deletions

diff --git a/ipc/shm.c b/ipc/shm.c
index 06cd5c91056f..cce022435dbc 100644
--- a/ipc/shm.c
+++ b/ipc/shm.c
@@ -28,6 +28,8 @@
 #include <linux/security.h>
 #include <linux/syscalls.h>
 #include <linux/audit.h>
+#include <linux/ptrace.h>
+
 #include <asm/uaccess.h>
 
 #include "util.h"
@@ -771,6 +773,18 @@ out:
         return err;
 }
 
+asmlinkage long sys_shmat(int shmid, char __user *shmaddr, int shmflg)
+{
+        unsigned long ret;
+        long err;
+
+        err = do_shmat(shmid, shmaddr, shmflg, &ret);
+        if (err)
+                return err;
+        force_successful_syscall_return();
+        return (long)ret;
+}
+
 /*
  * detach and kill segment if marked destroyed.
  * The work is done in shm_close.