[PATCH] PC keyboard: Disable interrupts during initialization

From: Malware (malware@t-online.de)
Date: Sat Feb 22 2003 - 08:42:56 EST


# This is a BitKeeper generated patch for the following project:
# Project Name: Linux kernel tree
# This patch format is intended for GNU patch command version 2.5 or higher.
# This patch includes the following deltas:
# ChangeSet 1.757.40.2 -> 1.757.40.3
# drivers/char/pc_keyb.c 1.13 -> 1.14
#
# The following is the BitKeeper ChangeSet Log
# --------------------------------------------
# 03/02/22 malware@debian.malware.de 1.757.40.3
# pc_keyb.c:
# Fix: Disable interrupts during keyboard initialization.
# The initialization does cause keyboard interrupts. On most platforms this
# should not be a problem. But if there is no interrupt controller the
# interrupt might retriggered for ever. This happended on the m68k/TekXpress
# port.
# --------------------------------------------
#
diff -Nru a/drivers/char/pc_keyb.c b/drivers/char/pc_keyb.c
--- a/drivers/char/pc_keyb.c Sat Feb 22 13:29:21 2003
+++ b/drivers/char/pc_keyb.c Sat Feb 22 13:29:21 2003
@@ -898,6 +898,8 @@
 
 void __init pckbd_init_hw(void)
 {
+ unsigned long flags;
+
         if (!kbd_controller_present()) {
                 kbd_exists = 0;
                 return;
@@ -905,6 +907,9 @@
 
         kbd_request_region();
 
+ save_flags(flags);
+ cli();
+
         /* Flush any pending input. */
         kbd_clear_input();
 
@@ -922,6 +927,8 @@
 
         /* Ok, finally allocate the IRQ, and off we go.. */
         kbd_request_irq(keyboard_interrupt);
+
+ restore_flags(flags);
 }
 
 #if defined CONFIG_PSMOUSE
-
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This archive was generated by hypermail 2b29 : Sun Feb 23 2003 - 22:00:36 EST