diff --git a/lockdev-1.0.1-subdir.patch b/lockdev-1.0.1-subdir.patch
new file mode 100644
index 0000000..51bb5a2
--- /dev/null
+++ b/lockdev-1.0.1-subdir.patch
@@ -0,0 +1,24 @@
+--- lockdev-1.0.1/src/lockdev.c.subdir	2005-02-23 12:57:52.253199688 +0100
++++ lockdev-1.0.1/src/lockdev.c	2005-02-23 13:08:27.193674064 +0100
+@@ -245,10 +245,19 @@
+ 	char * name;
+ 	const char * dev;
+ {
+-	int l;
+-	_debug( 3, "_dl_filename_2 (dev=%s)\n", dev);
++	int l, x;
++	char *p;
++	
+ 	/* lockfile of type /var/lock/LCK..ttyS2 */
++	_debug( 3, "_dl_filename_2 (dev=%s)\n", dev);
++	x = strlen(LOCK_PATH) + 6;	/* 6= strlen("/LCK..") */
+ 	l = sprintf( name, "%s/LCK..%s", LOCK_PATH, dev);
++	
++	/* replace '/' by '_' for /dev sub-dirs (like pppd does it)
++	 */
++	while ((p = strchr(name+x, '/')) != NULL) {
++	    *p = '_';
++	}
+ 	_debug( 2, "_dl_filename_2 () -> len=%d, name=%s<\n", l, name);
+ 	return l;
+ }
diff --git a/lockdev.spec b/lockdev.spec
index aec4cd5..d8818d4 100644
--- a/lockdev.spec
+++ b/lockdev.spec
@@ -1,7 +1,7 @@
 Summary: A library for locking devices.
 Name: lockdev
 Version: 1.0.1
-Release: 4
+Release: 5
 License: LGPL
 Group: System Environment/Libraries
 Source: http://ftp.debian.org/debian/pool/main/l/lockdev/%{name}_%{version}.orig.tar.gz
@@ -11,6 +11,7 @@ Patch2: lockdev-1.0.0-signal.patch
 Patch3: lockdev-1.0.0-cli.patch
 Patch4: lockdev-1.0.1-checkname.patch
 Patch5: lockdev-1.0.1-pidexists.patch
+Patch6: lockdev-1.0.1-subdir.patch
 Prereq: shadow-utils, filesystem >= 2.1.4-1
 BuildRoot: %{_tmppath}/%{name}-root
 
@@ -36,6 +37,7 @@ package contains the development headers and a static library.
 %patch3 -p1 -b .jbj
 %patch4 -p1 -b .checkname
 %patch5 -p1 -b .pidexists
+%patch6 -p1 -b .subdir
 
 %build
 make "CFLAGS=${RPM_OPT_FLAGS} -fPIC"
@@ -75,6 +77,9 @@ rm -fr $RPM_BUILD_ROOT
 %{_includedir}/*
 
 %changelog
+* Wed Feb 23 2005 Karel Zak <kzak@redhat.com> 1.0.1-5
+- lockdev errs on /dev/input/ttyACM0 (3-component pathname) (#126082, #98160, #74454)
+
 * Fri Oct 22 2004 Adrian Havill <havill@redhat.com> 1.0.1-4
 - don't unlock files if pid still exists (#128104)