From: Peng Tao <bergwolf@gmail.com>
Date: Thu, 6 Jun 2013 15:04:07 +0000 (+0800)
Subject: staging/lustre/libcfs: cleanup libcfs_kkuc_msg_put a bit
X-Git-Tag: v3.11-rc1~158^2~257
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=e543d2eaa8db8cdf14f9d91b6c2469e75d8fc0c0;p=linux.git

staging/lustre/libcfs: cleanup libcfs_kkuc_msg_put a bit

No need to cast count since it is already ssize_t. No need
to cast payload to const, but need __force instead to avoid
Sparse complaining.

Reported-and-Suggested-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Peng Tao <tao.peng@emc.com>
Signed-off-by: Andreas Dilger <andreas.dilger@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/staging/lustre/lustre/libcfs/kernel_user_comm.c b/drivers/staging/lustre/lustre/libcfs/kernel_user_comm.c
index 8084ada4a6aa..d6d3b2e0f307 100644
--- a/drivers/staging/lustre/lustre/libcfs/kernel_user_comm.c
+++ b/drivers/staging/lustre/lustre/libcfs/kernel_user_comm.c
@@ -170,8 +170,8 @@ int libcfs_kkuc_msg_put(struct file *filp, void *payload)
 
 	fs = get_fs();
 	set_fs(KERNEL_DS);
-	while ((ssize_t)count > 0) {
-		rc = vfs_write(filp, (const void __user *)payload,
+	while (count > 0) {
+		rc = vfs_write(filp, (void __force __user *)payload,
 			       count, &offset);
 		if (rc < 0)
 			break;