Merge commit 'v2.6.30' into for-2.6.31

[safe/jmp/linux-2.6] / fs / readdir.c

diff --git a/fs/readdir.c b/fs/readdir.c
index 4e026e5..7723401 100644 (file)
--- a/fs/readdir.c
+++ b/fs/readdir.c
@@ -80,8 +80,10 @@ static int fillonedir(void * __buf, const char * name, int namlen, loff_t offset
        if (buf->result)
                return -EINVAL;
        d_ino = ino;
-       if (sizeof(d_ino) < sizeof(ino) && d_ino != ino)
+       if (sizeof(d_ino) < sizeof(ino) && d_ino != ino) {
+               buf->result = -EOVERFLOW;
                return -EOVERFLOW;
+       }
        buf->result++;
        dirent = buf->dirent;
        if (!access_ok(VERIFY_WRITE, dirent,
@@ -100,7 +102,8 @@ efault:
        return -EFAULT;
 }
 
-asmlinkage long old_readdir(unsigned int fd, struct old_linux_dirent __user * dirent, unsigned int count)
+SYSCALL_DEFINE3(old_readdir, unsigned int, fd,
+               struct old_linux_dirent __user *, dirent, unsigned int, count)
 {
        int error;
        struct file * file;
@@ -115,7 +118,7 @@ asmlinkage long old_readdir(unsigned int fd, struct old_linux_dirent __user * di
        buf.dirent = dirent;
 
        error = vfs_readdir(file, fillonedir, &buf);
-       if (error >= 0)
+       if (buf.result)
                error = buf.result;
 
        fput(file);
@@ -155,8 +158,10 @@ static int filldir(void * __buf, const char * name, int namlen, loff_t offset,
        if (reclen > buf->count)
                return -EINVAL;
        d_ino = ino;
-       if (sizeof(d_ino) < sizeof(ino) && d_ino != ino)
+       if (sizeof(d_ino) < sizeof(ino) && d_ino != ino) {
+               buf->error = -EOVERFLOW;
                return -EOVERFLOW;
+       }
        dirent = buf->previous;
        if (dirent) {
                if (__put_user(offset, &dirent->d_off))
@@ -183,7 +188,8 @@ efault:
        return -EFAULT;
 }
 
-asmlinkage long sys_getdents(unsigned int fd, struct linux_dirent __user * dirent, unsigned int count)
+SYSCALL_DEFINE3(getdents, unsigned int, fd,
+               struct linux_dirent __user *, dirent, unsigned int, count)
 {
        struct file * file;
        struct linux_dirent __user * lastdirent;
@@ -205,9 +211,8 @@ asmlinkage long sys_getdents(unsigned int fd, struct linux_dirent __user * diren
        buf.error = 0;
 
        error = vfs_readdir(file, filldir, &buf);
-       if (error < 0)
-               goto out_putf;
-       error = buf.error;
+       if (error >= 0)
+               error = buf.error;
        lastdirent = buf.previous;
        if (lastdirent) {
                if (put_user(file->f_pos, &lastdirent->d_off))
@@ -215,8 +220,6 @@ asmlinkage long sys_getdents(unsigned int fd, struct linux_dirent __user * diren
                else
                        error = count - buf.count;
        }
-
-out_putf:
        fput(file);
 out:
        return error;
@@ -267,7 +270,8 @@ efault:
        return -EFAULT;
 }
 
-asmlinkage long sys_getdents64(unsigned int fd, struct linux_dirent64 __user * dirent, unsigned int count)
+SYSCALL_DEFINE3(getdents64, unsigned int, fd,
+               struct linux_dirent64 __user *, dirent, unsigned int, count)
 {
        struct file * file;
        struct linux_dirent64 __user * lastdirent;
@@ -289,19 +293,16 @@ asmlinkage long sys_getdents64(unsigned int fd, struct linux_dirent64 __user * d
        buf.error = 0;
 
        error = vfs_readdir(file, filldir64, &buf);
-       if (error < 0)
-               goto out_putf;
-       error = buf.error;
+       if (error >= 0)
+               error = buf.error;
        lastdirent = buf.previous;
        if (lastdirent) {
                typeof(lastdirent->d_off) d_off = file->f_pos;
-               error = -EFAULT;
                if (__put_user(d_off, &lastdirent->d_off))
-                       goto out_putf;
-               error = count - buf.count;
+                       error = -EFAULT;
+               else
+                       error = count - buf.count;
        }
-
-out_putf:
        fput(file);
 out:
        return error;