linux-kernel - [PATCH] mei: samples: fix a signedness bug in amt_host_if

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Date:   Mon, 1 Oct 2018 19:44:41 +0300
From:   Dan Carpenter <dan.carpenter@...cle.com>
To:     Tomas Winkler <tomas.winkler@...el.com>
Cc:     linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Shuah Khan <shuahkh@....samsung.com>
Subject: [PATCH] mei: samples: fix a signedness bug in amt_host_if_call()

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

Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>

diff --git a/samples/mei/mei-amt-version.c b/samples/mei/mei-amt-version.c
index 57d0d871dcf7..33e67bd1dc34 100644
--- a/samples/mei/mei-amt-version.c
+++ b/samples/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;