linux-kernel - [patch] block, sx8: fix pointer math issue getting fw version

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Message-ID: <20120302190042.GB3951@elgon.mountain>
Date:	Fri, 2 Mar 2012 22:00:43 +0300
From:	Dan Carpenter <dan.carpenter@...cle.com>
To:	Jeff Garzik <jgarzik@...ox.com>
Cc:	Tejun Heo <tj@...nel.org>, Jens Axboe <axboe@...nel.dk>,
	linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: [patch] block, sx8: fix pointer math issue getting fw version

"mem" is type u8.  We need parenthesis here or it screws up the pointer
math probably leading to an oops.

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

diff --git a/drivers/block/sx8.c b/drivers/block/sx8.c
index e7472f5..3fb6ab4 100644
--- a/drivers/block/sx8.c
+++ b/drivers/block/sx8.c
@@ -1120,7 +1120,7 @@ static inline void carm_handle_resp(struct carm_host *host,
 			break;
 		case MISC_GET_FW_VER: {
 			struct carm_fw_ver *ver = (struct carm_fw_ver *)
-				mem + sizeof(struct carm_msg_get_fw_ver);
+				(mem + sizeof(struct carm_msg_get_fw_ver));
 			if (!error) {
 				host->fw_ver = le32_to_cpu(ver->version);
 				host->flags |= (ver->features & FL_FW_VER_MASK);
--
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