diff options
| author | zhong jiang <zhongjiang@huawei.com> | 2018-09-18 23:54:41 +0800 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2018-09-25 20:44:21 -0400 |
| commit | 048a864e533039cc950b716e774c2c09af8fa1dd (patch) | |
| tree | 754b2bef513baf64d3c8baea76847b888c37d52a | |
| parent | 874deb1c652df94917f5619d972d2435a762b8a0 (diff) | |
scsi: hpsa: Use vmemdup_user to replace the open code
vmemdup_user is better than duplicating its implementation, So just replace
the open code.
The issue is detected with the help of Coccinelle.
Tested-by: Don Brace <don.brace@microsemi.com>
Acked-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: zhong jiang <zhongjiang@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| -rw-r--r-- | drivers/scsi/hpsa.c | 12 |
1 files changed, 4 insertions, 8 deletions
diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c index 58bb70b886d7..666ba09e5f42 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) && @@ -6505,7 +6501,7 @@ cleanup1: kfree(buff); } kfree(buff_size); - kfree(ioc); + kvfree(ioc); return status; } |