mfd: viperboard: Delete an error message for a failed memory allocation in vprbrd_probe()

Omit an extra message for a memory allocation failure in this function.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
diff --git a/drivers/mfd/viperboard.c b/drivers/mfd/viperboard.c
index e6b3c70..e9f6126 100644
--- a/drivers/mfd/viperboard.c
+++ b/drivers/mfd/viperboard.c
@@ -59,10 +59,8 @@
 
 	/* allocate memory for our device state and initialize it */
 	vb = kzalloc(sizeof(*vb), GFP_KERNEL);
-	if (vb == NULL) {
-		dev_err(&interface->dev, "Out of memory\n");
+	if (!vb)
 		return -ENOMEM;
-	}
 
 	mutex_init(&vb->lock);