diff --git a/fs/compat.c b/fs/compat.c
index cc58a20df57a..70c5af4cc270 100644
--- a/fs/compat.c
+++ b/fs/compat.c
@@ -73,17 +73,17 @@ asmlinkage long compat_sys_utime(char __user *filename, struct compat_utimbuf __
 	return do_utimes(AT_FDCWD, filename, t ? tv : NULL);
 }
 
-asmlinkage long compat_sys_futimesat(int dfd, char __user *filename, struct compat_timeval __user *t)
+asmlinkage long compat_sys_futimesat(unsigned int dfd, char __user *filename, struct compat_timeval __user *t)
 {
 	struct timeval tv[2];
 
-	if (t) { 
+	if (t) {
 		if (get_user(tv[0].tv_sec, &t[0].tv_sec) ||
 		    get_user(tv[0].tv_usec, &t[0].tv_usec) ||
 		    get_user(tv[1].tv_sec, &t[1].tv_sec) ||
 		    get_user(tv[1].tv_usec, &t[1].tv_usec))
-			return -EFAULT; 
-	} 
+			return -EFAULT;
+	}
 	return do_utimes(dfd, filename, t ? tv : NULL);
 }
 
@@ -114,7 +114,7 @@ asmlinkage long compat_sys_newlstat(char __user * filename,
 	return error;
 }
 
-asmlinkage long compat_sys_newfstatat(int dfd, char __user *filename,
+asmlinkage long compat_sys_newfstatat(unsigned int dfd, char __user *filename,
 		struct compat_stat __user *statbuf, int flag)
 {
 	struct kstat stat;
@@ -1326,7 +1326,7 @@ compat_sys_open(const char __user *filename, int flags, int mode)
  * O_LARGEFILE flag.
  */
 asmlinkage long
-compat_sys_openat(int dfd, const char __user *filename, int flags, int mode)
+compat_sys_openat(unsigned int dfd, const char __user *filename, int flags, int mode)
 {
 	return do_sys_open(dfd, filename, flags, mode);
 }
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index fdbd436b24cc..3877209d23c3 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -559,12 +559,12 @@ asmlinkage long sys_newfstatat(int dfd, char __user *filename,
 			       struct stat __user *statbuf, int flag);
 asmlinkage long sys_readlinkat(int dfd, const char __user *path, char __user *buf,
 			       int bufsiz);
-asmlinkage long compat_sys_futimesat(int dfd, char __user *filename,
+asmlinkage long compat_sys_futimesat(unsigned int dfd, char __user *filename,
 				     struct compat_timeval __user *t);
-asmlinkage long compat_sys_newfstatat(int dfd, char __user * filename,
+asmlinkage long compat_sys_newfstatat(unsigned int dfd, char __user * filename,
 				      struct compat_stat __user *statbuf,
 				      int flag);
-asmlinkage long compat_sys_openat(int dfd, const char __user *filename,
+asmlinkage long compat_sys_openat(unsigned int dfd, const char __user *filename,
 				   int flags, int mode);
 
 #endif