Revert to Fedora kernel-2.6.17-1.2187_FC5 patched with vs2.0.2.1; there are too many...

[linux-2.6.git] / arch / sparc / kernel / sys_sparc.c

diff --git a/arch/sparc/kernel/sys_sparc.c b/arch/sparc/kernel/sys_sparc.c
index 0787907..5a220d6 100644 (file)
--- a/arch/sparc/kernel/sys_sparc.c
+++ b/arch/sparc/kernel/sys_sparc.c
@@ -198,8 +198,7 @@ asmlinkage int sys_ipc (uint call, int first, int second, int third, void __user
                                goto out;
                                }
                        case 1: /* iBCS2 emulator entry point */
-                               err = do_shmat (first, (char __user *) ptr,
-                                               second, (ulong *) third);
+                               err = -EINVAL;
                                goto out;
                        }
                case SHMDT: 
@@ -221,6 +220,21 @@ out:
        return err;
 }
 
+int sparc_mmap_check(unsigned long addr, unsigned long len, unsigned long flags)
+{
+       if (ARCH_SUN4C_SUN4 &&
+           (len > 0x20000000 ||
+            ((flags & MAP_FIXED) &&
+             addr < 0xe0000000 && addr + len > 0x20000000)))
+               return -EINVAL;
+
+       /* See asm-sparc/uaccess.h */
+       if (len > TASK_SIZE - PAGE_SIZE || addr + len > TASK_SIZE - PAGE_SIZE)
+               return -EINVAL;
+
+       return 0;
+}
+
 /* Linux version of mmap */
 static unsigned long do_mmap2(unsigned long addr, unsigned long len,
        unsigned long prot, unsigned long flags, unsigned long fd,
@@ -235,25 +249,13 @@ static unsigned long do_mmap2(unsigned long addr, unsigned long len,
                        goto out;
        }
 
-       retval = -EINVAL;
        len = PAGE_ALIGN(len);
-       if (ARCH_SUN4C_SUN4 &&
-           (len > 0x20000000 ||
-            ((flags & MAP_FIXED) &&
-             addr < 0xe0000000 && addr + len > 0x20000000)))
-               goto out_putf;
-
-       /* See asm-sparc/uaccess.h */
-       if (len > TASK_SIZE - PAGE_SIZE || addr + len > TASK_SIZE - PAGE_SIZE)
-               goto out_putf;
-
        flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
 
        down_write(&current->mm->mmap_sem);
        retval = do_mmap_pgoff(file, addr, len, prot, flags, pgoff);
        up_write(&current->mm->mmap_sem);
 
-out_putf:
        if (file)
                fput(file);
 out:
@@ -401,7 +403,7 @@ sparc_sigaction (int sig, const struct old_sigaction __user *act,
        if (act) {
                unsigned long mask;
 
-               if (verify_area(VERIFY_READ, act, sizeof(*act)) ||
+               if (!access_ok(VERIFY_READ, act, sizeof(*act)) ||
                    __get_user(new_ka.sa.sa_handler, &act->sa_handler) ||
                    __get_user(new_ka.sa.sa_restorer, &act->sa_restorer))
                        return -EFAULT;
@@ -419,7 +421,7 @@ sparc_sigaction (int sig, const struct old_sigaction __user *act,
                 * deadlock us if we held the signal lock on SMP.  So for
                 * now I take the easy way out and do no locking.
                 */
-               if (verify_area(VERIFY_WRITE, oact, sizeof(*oact)) ||
+               if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) ||
                    __put_user(old_ka.sa.sa_handler, &oact->sa_handler) ||
                    __put_user(old_ka.sa.sa_restorer, &oact->sa_restorer))
                        return -EFAULT;