linux-kernel - [PATCH 8/8] [SCSI] pmcraid: Pass pointers to access

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Date:	Sun, 27 Oct 2013 21:54:46 +0000
From:	Ben Hutchings <ben@...adent.org.uk>
To:	Anil Ravindranath <anil_ravindranath@...-sierra.com>,
	"James E.J. Bottomley" <JBottomley@...allels.com>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	linux-scsi <linux-scsi@...r.kernel.org>
Subject: [PATCH 8/8] [SCSI] pmcraid: Pass pointers to access_ok(), not
 integers

Most architectures define access_ok() as a macro that casts its
argument such that an argument of type unsigned long will be accepted
without complaint.  However, the proper type is void *, and passing
unsigned long results in a warning on sparc64.

Compile-tested only.

Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 drivers/scsi/pmcraid.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/pmcraid.c b/drivers/scsi/pmcraid.c
index 1eb7b028..4e0a2f3 100644
--- a/drivers/scsi/pmcraid.c
+++ b/drivers/scsi/pmcraid.c
@@ -3794,7 +3794,8 @@ static long pmcraid_ioctl_passthrough(
 	}
 
 	if (request_size > 0) {
-		rc = access_ok(access, arg, request_offset + request_size);
+		rc = access_ok(access, (void *)arg,
+			       request_offset + request_size);
 
 		if (!rc) {
 			rc = -EFAULT;

-- 
Ben Hutchings
If at first you don't succeed, you're doing about average.

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