From: Vitaly Kuznetsov <vkuznets@redhat.com>
Date: Sat, 1 Aug 2015 23:08:11 +0000 (-0700)
Subject: Drivers: hv: kvp: check kzalloc return value
X-Git-Tag: v4.1.12-102.0.20170530_1700~41
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=56728638d3af527f6c5d5b9403bd6a0b0bc184c1;p=users%2Fjedix%2Flinux-maple.git

Drivers: hv: kvp: check kzalloc return value

kzalloc() return value check was accidentally lost in 11bc3a5fa91f:
"Drivers: hv: kvp: convert to hv_utils_transport" commit.

We don't need to reset kvp_transaction.state here as we have the
kvp_timeout_func() timeout function and in case we're in OOM situation
it is preferable to wait.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Orabug: 25970637
(cherry picked from commit b36fda339729a974a8838978dcdc581d8ce68fd9)
Signed-off-by: Jack Vogel <jack.vogel@oracle.com>
---

diff --git a/drivers/hv/hv_kvp.c b/drivers/hv/hv_kvp.c
index baa12088ef24f..76ae976f32e8e 100644
--- a/drivers/hv/hv_kvp.c
+++ b/drivers/hv/hv_kvp.c
@@ -352,6 +352,9 @@ kvp_send_key(struct work_struct *dummy)
 		return;
 
 	message = kzalloc(sizeof(*message), GFP_KERNEL);
+	if (!message)
+		return;
+
 	message->kvp_hdr.operation = operation;
 	message->kvp_hdr.pool = pool;
 	in_msg = kvp_transaction.kvp_msg;