extcon: Remove unnecessary OOM messages

The site-specific OOM messages are unnecessary, because they
duplicate the MM subsystem generic OOM message. The following
checkpatch warning is also removed.

  WARNING: Possible unnecessary 'out of memory' message

Signed-off-by: Jingoo Han <[email protected]>
[Acked by Charles Keepax for arizona part]
Acked-by: Charles Keepax <[email protected]>
Signed-off-by: Chanwoo Choi <[email protected]>
diff --git a/drivers/extcon/extcon-arizona.c b/drivers/extcon/extcon-arizona.c
index 0b1ee9f..59aa513 100644
--- a/drivers/extcon/extcon-arizona.c
+++ b/drivers/extcon/extcon-arizona.c
@@ -1117,10 +1117,8 @@
 		return -EPROBE_DEFER;
 
 	info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL);
-	if (!info) {
-		dev_err(&pdev->dev, "Failed to allocate memory\n");
+	if (!info)
 		return -ENOMEM;
-	}
 
 	info->micvdd = devm_regulator_get(arizona->dev, "MICVDD");
 	if (IS_ERR(info->micvdd)) {
diff --git a/drivers/extcon/extcon-max14577.c b/drivers/extcon/extcon-max14577.c
index d49e891..7309743 100644
--- a/drivers/extcon/extcon-max14577.c
+++ b/drivers/extcon/extcon-max14577.c
@@ -692,10 +692,9 @@
 	u8 id;
 
 	info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL);
-	if (!info) {
-		dev_err(&pdev->dev, "failed to allocate memory\n");
+	if (!info)
 		return -ENOMEM;
-	}
+
 	info->dev = &pdev->dev;
 	info->max14577 = max14577;
 
diff --git a/drivers/extcon/extcon-max77693.c b/drivers/extcon/extcon-max77693.c
index 042bf742..77460f2 100644
--- a/drivers/extcon/extcon-max77693.c
+++ b/drivers/extcon/extcon-max77693.c
@@ -1099,10 +1099,9 @@
 
 	info = devm_kzalloc(&pdev->dev, sizeof(struct max77693_muic_info),
 				   GFP_KERNEL);
-	if (!info) {
-		dev_err(&pdev->dev, "failed to allocate memory\n");
+	if (!info)
 		return -ENOMEM;
-	}
+
 	info->dev = &pdev->dev;
 	info->max77693 = max77693;
 	if (info->max77693->regmap_muic) {
diff --git a/drivers/extcon/extcon-max8997.c b/drivers/extcon/extcon-max8997.c
index d22c379..75e501c 100644
--- a/drivers/extcon/extcon-max8997.c
+++ b/drivers/extcon/extcon-max8997.c
@@ -661,10 +661,8 @@
 
 	info = devm_kzalloc(&pdev->dev, sizeof(struct max8997_muic_info),
 			    GFP_KERNEL);
-	if (!info) {
-		dev_err(&pdev->dev, "failed to allocate memory\n");
+	if (!info)
 		return -ENOMEM;
-	}
 
 	info->dev = &pdev->dev;
 	info->muic = max8997->muic;