From c6c7a17010697377df1241a2914e3c1e5582e234 Mon Sep 17 00:00:00 2001 From: Tobin C Harding Date: Mon, 23 May 2016 10:14:22 +1000 Subject: [PATCH] staging: lustre: llite: kzalloc/copy_to_user to memdup_user kzalloc call followed by copy_to_user can be replaced by call to memdup_user. Signed-off-by: Tobin C Harding Signed-off-by: Greg Kroah-Hartman --- drivers/staging/lustre/lustre/llite/dir.c | 12 +++--------- 1 file changed, 3 insertions(+), 9 deletions(-) diff --git a/drivers/staging/lustre/lustre/llite/dir.c b/drivers/staging/lustre/lustre/llite/dir.c index 4b00d1a..85c50e0 100644 --- a/drivers/staging/lustre/lustre/llite/dir.c +++ b/drivers/staging/lustre/lustre/llite/dir.c @@ -1076,17 +1076,11 @@ static int copy_and_ioctl(int cmd, struct obd_export *exp, void *copy; int rc; - copy = kzalloc(size, GFP_NOFS); - if (!copy) - return -ENOMEM; - - if (copy_from_user(copy, data, size)) { - rc = -EFAULT; - goto out; - } + copy = memdup_user(data, size); + if (IS_ERR(copy)) + return PTR_ERR(copy); rc = obd_iocontrol(cmd, exp, size, copy, NULL); -out: kfree(copy); return rc; -- 2.7.4