From d49d0e39a09209d0136c7da2a1a52e99af2d4656 Mon Sep 17 00:00:00 2001
From: Kulikov Vasiliy <segooon@gmail.com>
Date: Fri, 30 Jul 2010 15:08:00 +0400
Subject: [PATCH] staging: otus: check kmalloc() return value

kmalloc() may fail, if so return error from zfwUsbSubmitControl().

Signed-off-by: Kulikov Vasiliy <segooon@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 drivers/staging/otus/wrap_usb.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/staging/otus/wrap_usb.c b/drivers/staging/otus/wrap_usb.c
index 93459cadc472..9f04047bf5a6 100644
--- a/drivers/staging/otus/wrap_usb.c
+++ b/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;