fix file specification in comments

Many files include the filename at the beginning, serveral used a wrong one.

Signed-off-by: Uwe Zeisberger <Uwe_Zeisberger@digi.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
diff --git a/arch/alpha/lib/dbg_stackcheck.S b/arch/alpha/lib/dbg_stackcheck.S
index 3c1f3e6..78f6b92 100644
--- a/arch/alpha/lib/dbg_stackcheck.S
+++ b/arch/alpha/lib/dbg_stackcheck.S
@@ -1,5 +1,5 @@
 /*
- * arch/alpha/lib/stackcheck.S
+ * arch/alpha/lib/dbg_stackcheck.S
  * Contributed by Richard Henderson (rth@tamu.edu)
  *
  * Verify that we have not overflowed the stack.  Oops if we have.
diff --git a/arch/alpha/lib/dbg_stackkill.S b/arch/alpha/lib/dbg_stackkill.S
index e9f6a9d..c1e40a1 100644
--- a/arch/alpha/lib/dbg_stackkill.S
+++ b/arch/alpha/lib/dbg_stackkill.S
@@ -1,5 +1,5 @@
 /*
- * arch/alpha/lib/killstack.S
+ * arch/alpha/lib/dbg_stackkill.S
  * Contributed by Richard Henderson (rth@cygnus.com)
  *
  * Clobber the balance of the kernel stack, hoping to catch
diff --git a/arch/alpha/lib/memset.S b/arch/alpha/lib/memset.S
index 8ff6e7e..311b8cf 100644
--- a/arch/alpha/lib/memset.S
+++ b/arch/alpha/lib/memset.S
@@ -1,5 +1,5 @@
 /*
- * linux/arch/alpha/memset.S
+ * linux/arch/alpha/lib/memset.S
  *
  * This is an efficient (and small) implementation of the C library "memset()"
  * function for the alpha.