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SubjectRe: [PATCH] scsi: Use vmemdup_user to replace the open code
Please ignore the patch, will repost . Thanks
On 2018/8/13 20:22, zhong jiang wrote:
> vmemdup_user is better than duplicating its implementation, So just
> replace the open code.
>
> Signed-off-by: zhong jiang <zhongjiang@huawei.com>
> ---
> drivers/scsi/hpsa.c | 10 +++-------
> 1 file changed, 3 insertions(+), 7 deletions(-)
>
> diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
> index 58bb70b..948576a 100644
> --- a/drivers/scsi/hpsa.c
> +++ b/drivers/scsi/hpsa.c
> @@ -6381,13 +6381,9 @@ static int hpsa_big_passthru_ioctl(struct ctlr_info *h, void __user *argp)
> return -EINVAL;
> if (!capable(CAP_SYS_RAWIO))
> return -EPERM;
> - ioc = kmalloc(sizeof(*ioc), GFP_KERNEL);
> - if (!ioc) {
> - status = -ENOMEM;
> - goto cleanup1;
> - }
> - if (copy_from_user(ioc, argp, sizeof(*ioc))) {
> - status = -EFAULT;
> + ioc = vmemdup_user(argp, sizeof(*ioc));
> + if (IS_ERR(ioc)) {
> + status = PTR_ERR(ioc);
> goto cleanup1;
> }
> if ((ioc->buf_size < 1) &&


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