4.20-stable review patch. If anyone has any objections, please let me know.
------------------
From: Daniel Drake <dr...@endlessm.com>
commit 7e6fc2f50a3197d0e82d1c0e86282976c9e6c8a4 upstream.
The outb() function takes parameters value and port, in that order. Fix
the parameters used in the kalsr i8254 fallback code.
Fixes: 5bfce5ef55cb ("x86, kaslr: Provide randomness functions")
Signed-off-by: Daniel Drake <dr...@endlessm.com>
Signed-off-by: Thomas Gleixner <t...@linutronix.de>
Cc: b...@alien8.de
Cc: h...@zytor.com
Cc: li...@endlessm.com
Cc: sta...@vger.kernel.org
Link: https://lkml.kernel.org/r/20190107034024.15005-1-dr...@endlessm.com
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
arch/x86/lib/kaslr.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/arch/x86/lib/kaslr.c
+++ b/arch/x86/lib/kaslr.c
@@ -36,8 +36,8 @@ static inline u16 i8254(void)
u16 status, timer;
do {
- outb(I8254_PORT_CONTROL,
- I8254_CMD_READBACK | I8254_SELECT_COUNTER0);
+ outb(I8254_CMD_READBACK | I8254_SELECT_COUNTER0,
+ I8254_PORT_CONTROL);
status = inb(I8254_PORT_COUNTER0);
timer = inb(I8254_PORT_COUNTER0);
timer |= inb(I8254_PORT_COUNTER0) << 8;
