1 files changed, 12 insertions, 15 deletions

diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c
index debdfe0fc809..48f1987bec34 100644
--- a/fs/compat_ioctl.c
+++ b/fs/compat_ioctl.c
@@ -1531,16 +1531,13 @@ static int compat_ioctl_check_table(unsigned int xcmd)
 asmlinkage long compat_sys_ioctl(unsigned int fd, unsigned int cmd,
                                 unsigned long arg)
 {
-        struct file *filp;
+        struct fd f = fdget(fd);
         int error = -EBADF;
-        int fput_needed;
-
-        filp = fget_light(fd, &fput_needed);
-        if (!filp)
+        if (!f.file)
                 goto out;
 
         /* RED-PEN how should LSM module know it's handling 32bit? */
-        error = security_file_ioctl(filp, cmd, arg);
+        error = security_file_ioctl(f.file, cmd, arg);
         if (error)
                 goto out_fput;
 
@@ -1560,30 +1557,30 @@ asmlinkage long compat_sys_ioctl(unsigned int fd, unsigned int cmd,
 #if defined(CONFIG_IA64) || defined(CONFIG_X86_64)
         case FS_IOC_RESVSP_32:
         case FS_IOC_RESVSP64_32:
-                error = compat_ioctl_preallocate(filp, compat_ptr(arg));
+                error = compat_ioctl_preallocate(f.file, compat_ptr(arg));
                 goto out_fput;
 #else
         case FS_IOC_RESVSP:
         case FS_IOC_RESVSP64:
-                error = ioctl_preallocate(filp, compat_ptr(arg));
+                error = ioctl_preallocate(f.file, compat_ptr(arg));
                 goto out_fput;
 #endif
 
         case FIBMAP:
         case FIGETBSZ:
         case FIONREAD:
-                if (S_ISREG(filp->f_path.dentry->d_inode->i_mode))
+                if (S_ISREG(f.file->f_path.dentry->d_inode->i_mode))
                         break;
                 /*FALL THROUGH*/
 
         default:
-                if (filp->f_op && filp->f_op->compat_ioctl) {
-                        error = filp->f_op->compat_ioctl(filp, cmd, arg);
+                if (f.file->f_op && f.file->f_op->compat_ioctl) {
+                        error = f.file->f_op->compat_ioctl(f.file, cmd, arg);
                         if (error != -ENOIOCTLCMD)
                                 goto out_fput;
                 }
 
-                if (!filp->f_op || !filp->f_op->unlocked_ioctl)
+                if (!f.file->f_op || !f.file->f_op->unlocked_ioctl)
                         goto do_ioctl;
                 break;
         }
@@ -1591,7 +1588,7 @@ asmlinkage long compat_sys_ioctl(unsigned int fd, unsigned int cmd,
         if (compat_ioctl_check_table(XFORM(cmd)))
                 goto found_handler;
 
-        error = do_ioctl_trans(fd, cmd, arg, filp);
+        error = do_ioctl_trans(fd, cmd, arg, f.file);
         if (error == -ENOIOCTLCMD)
                 error = -ENOTTY;
 
@@ -1600,9 +1597,9 @@ asmlinkage long compat_sys_ioctl(unsigned int fd, unsigned int cmd,
  found_handler:
         arg = (unsigned long)compat_ptr(arg);
  do_ioctl:
-        error = do_vfs_ioctl(filp, fd, cmd, arg);
+        error = do_vfs_ioctl(f.file, fd, cmd, arg);
  out_fput:
-        fput_light(filp, fput_needed);
+        fdput(f);
  out:
         return error;
 }