x86/boot: Clean up whitespace in a20.c

Remove trailing whitespace on empty lines.

No functional changes.

  [ bp: Massage commit message. ]

Signed-off-by: Harry Fellowes <harryfellowes1@gmail.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://patch.msgid.link/20250825192832.6444-3-harryfellowes1@gmail.com

diff --git a/arch/x86/boot/a20.c b/arch/x86/boot/a20.c
index a2b6b428922acd39148f6ae26ce49e8d1810ca1e..bda042933a0537e0ef0170a611fb196ff743d0de 100644 (file)
--- a/arch/x86/boot/a20.c
+++ b/arch/x86/boot/a20.c
@@ -135,29 +135,29 @@ int enable_a20(void)
                  (legacy free, etc.) */
               if (a20_test_short())
                       return 0;
-              
+
               /* Next, try the BIOS (INT 0x15, AX=0x2401) */
               enable_a20_bios();
               if (a20_test_short())
                       return 0;
-              
+
               /* Try enabling A20 through the keyboard controller */
               kbc_err = empty_8042();
 
               if (a20_test_short())
                       return 0; /* BIOS worked, but with delayed reaction */
-       
+
               if (!kbc_err) {
                       enable_a20_kbc();
                       if (a20_test_long())
                               return 0;
               }
-              
+
               /* Finally, try enabling the "fast A20 gate" */
               enable_a20_fast();
               if (a20_test_long())
                       return 0;
        }
-       
+
        return -1;
 }