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From: Peter Jones <pjones@redhat.com>
Date: Thu, 25 Sep 2008 16:23:33 -0400
Subject: [PATCH] input: silence i8042 noise

Don't print an error message just because there's no i8042 chip.
Some systems, such as EFI-based Apple systems, won't necessarily have an
i8042 to initialize.  We shouldn't be printing an error message in this
case, since not detecting the chip is the correct behavior.

Bugzilla: N/A
Upstream-status: Fedora mustard
---
 drivers/base/power/main.c   | 2 --
 drivers/input/serio/i8042.c | 1 -
 net/can/af_can.c            | 8 ++------
 3 files changed, 2 insertions(+), 9 deletions(-)

diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c
index 9717d5f20139..a3101d2fd936 100644
--- a/drivers/base/power/main.c
+++ b/drivers/base/power/main.c
@@ -122,8 +122,6 @@ void device_pm_unlock(void)
  */
 void device_pm_add(struct device *dev)
 {
-	pr_debug("PM: Adding info for %s:%s\n",
-		 dev->bus ? dev->bus->name : "No Bus", dev_name(dev));
 	mutex_lock(&dpm_list_mtx);
 	if (dev->parent && dev->parent->power.is_prepared)
 		dev_warn(dev, "parent %s should not be sleeping\n",
diff --git a/drivers/input/serio/i8042.c b/drivers/input/serio/i8042.c
index 986a71c614b0..bfb0b2280df0 100644
--- a/drivers/input/serio/i8042.c
+++ b/drivers/input/serio/i8042.c
@@ -871,7 +871,6 @@ static int __init i8042_check_aux(void)
 static int i8042_controller_check(void)
 {
 	if (i8042_flush()) {
-		pr_err("No controller found\n");
 		return -ENODEV;
 	}
 
diff --git a/net/can/af_can.c b/net/can/af_can.c
index 32d710eaf1fc..af4a20b86ee7 100644
--- a/net/can/af_can.c
+++ b/net/can/af_can.c
@@ -155,13 +155,9 @@ static int can_create(struct net *net, struct socket *sock, int protocol,
 		err = request_module("can-proto-%d", protocol);
 
 		/*
-		 * In case of error we only print a message but don't
-		 * return the error code immediately.  Below we will
-		 * return -EPROTONOSUPPORT
+		 * In case of error we but don't return the error code immediately.
+		 * Below we will return -EPROTONOSUPPORT
 		 */
-		if (err)
-			printk_ratelimited(KERN_ERR "can: request_module "
-			       "(can-proto-%d) failed.\n", protocol);
 
 		cp = can_get_proto(protocol);
 	}