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staging: lustre: ptlrpc: lproc_ptlrpc.c - fix dereferenceing user space buffer 

- this fixes sparse warning for directly deferencing user space buffer

drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c:652:33: warning: incorrect type in argument 2 (different address spaces)
drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c:652:33:    expected void const [noderef] <asn:1>*from
drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c:652:33:    got char const *buffer

Signed-off-by: Anil Belur <askb23@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Anil Belur 2014-07-31 13:21:02 +05:30 committed by Greg Kroah-Hartman
parent f1555465d3
commit 29dd4f9be6
1 changed files with 2 additions and 1 deletions
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3
drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c
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@ -628,7 +628,8 @@ static int ptlrpc_lprocfs_nrs_seq_show(struct seq_file *m, void *n)
* if the optional token is omitted, the operation is performed on both the
* regular and high-priority (if the service has one) NRS head.
*/
static ssize_t ptlrpc_lprocfs_nrs_seq_write(struct file *file, const char *buffer,
static ssize_t ptlrpc_lprocfs_nrs_seq_write(struct file *file,
const char __user *buffer,
size_t count, loff_t *off)
{
struct ptlrpc_service *svc = ((struct seq_file *)file->private_data)->private;