diff --git a/[refs] b/[refs]
index c26d8f05808a..a250e1b012e7 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 94f5659cfa4f14ba901fbbb8a57d0145754d0d37
+refs/heads/master: d49d0e39a09209d0136c7da2a1a52e99af2d4656
diff --git a/trunk/drivers/staging/otus/wrap_usb.c b/trunk/drivers/staging/otus/wrap_usb.c
index 93459cadc472..9f04047bf5a6 100644
--- a/trunk/drivers/staging/otus/wrap_usb.c
+++ b/trunk/drivers/staging/otus/wrap_usb.c
@@ -104,6 +104,11 @@ u32_t zfwUsbSubmitControl(zdev_t *dev, u8_t req, u16_t value, u16_t index,
 
 	if (size > 0) {
 		buf = kmalloc(size, GFP_KERNEL);
+		if (buf == NULL) {
+			pr_err("zfwUsbSubmitControl() failed, "
+				  "kmalloc() returned NULL\n");
+			return 1;
+		}
 		memcpy(buf, (u8_t *)data, size);
 	} else
 		buf = NULL;