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Subject[PATCH -next v2] scsi: aacraid: Use memdup_user() as a cleanup
Date
Fix coccicheck warning which recommends to use memdup_user().

This patch fixes the following coccicheck warning:

drivers/scsi/aacraid/commctrl.c:516:15-22: WARNING opportunity for memdup_user

Fixes: 4645df1035b3 ("[PATCH] aacraid: swapped kmalloc args.")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zou Wei <zou_wei@huawei.com>
---
drivers/scsi/aacraid/commctrl.c | 12 +++---------
1 file changed, 3 insertions(+), 9 deletions(-)

diff --git a/drivers/scsi/aacraid/commctrl.c b/drivers/scsi/aacraid/commctrl.c
index ffe41bc..102658b 100644
--- a/drivers/scsi/aacraid/commctrl.c
+++ b/drivers/scsi/aacraid/commctrl.c
@@ -513,15 +513,9 @@ static int aac_send_raw_srb(struct aac_dev* dev, void __user * arg)
goto cleanup;
}

- user_srbcmd = kmalloc(fibsize, GFP_KERNEL);
- if (!user_srbcmd) {
- dprintk((KERN_DEBUG"aacraid: Could not make a copy of the srb\n"));
- rcode = -ENOMEM;
- goto cleanup;
- }
- if(copy_from_user(user_srbcmd, user_srb,fibsize)){
- dprintk((KERN_DEBUG"aacraid: Could not copy srb from user\n"));
- rcode = -EFAULT;
+ user_srbcmd = memdup_user(user_srb, fibsize);
+ if (IS_ERR(user_srbcmd)) {
+ rcode = PTR_ERR(user_srbcmd);
goto cleanup;
}

--
2.6.2
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