linux-kernel - [PATCH 4.4 121/159] mei: samples: fix a signedness bug in amt_host_if

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Message-Id: <20191122100831.264094414@linuxfoundation.org>
Date:   Fri, 22 Nov 2019 11:28:32 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Dan Carpenter <dan.carpenter@...cle.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.4 121/159] mei: samples: fix a signedness bug in amt_host_if_call()

From: Dan Carpenter <dan.carpenter@...cle.com>

[ Upstream commit 185647813cac080453cb73a2e034a8821049f2a7 ]

"out_buf_sz" needs to be signed for the error handling to work.

Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 Documentation/misc-devices/mei/mei-amt-version.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/misc-devices/mei/mei-amt-version.c b/Documentation/misc-devices/mei/mei-amt-version.c
index 57d0d871dcf71..33e67bd1dc343 100644
--- a/Documentation/misc-devices/mei/mei-amt-version.c
+++ b/Documentation/misc-devices/mei/mei-amt-version.c
@@ -370,7 +370,7 @@ static uint32_t amt_host_if_call(struct amt_host_if *acmd,
 			unsigned int expected_sz)
 {
 	uint32_t in_buf_sz;
-	uint32_t out_buf_sz;
+	ssize_t out_buf_sz;
 	ssize_t written;
 	uint32_t status;
 	struct amt_host_if_resp_header *msg_hdr;
-- 
2.20.1