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mlx5: Return -EFAULT instead of -EPERM

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For copy_to/from_user() failure, the correct error code is -EFAULT not
-EPERM.

Signed-off-by: Dan Carpenter <[email protected]>
Acked-by: Or Gerlitz <[email protected]>
Signed-off-by: Roland Dreier <[email protected]>
This commit is contained in:
Dan Carpenter 2013-07-10 13:58:59 +03:00 • committed by Roland Dreier
commit 5e631a03af
3 changed files with 13 additions and 17 deletions
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8
drivers/infiniband/hw/mlx5/mr.c
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@ -171,7 +171,7 @@ static ssize_t size_write(struct file *filp, const char __user *buf,
int c;
if (copy_from_user(lbuf, buf, sizeof(lbuf)))
return -EPERM;
return -EFAULT;
c = order2idx(dev, ent->order);
lbuf[sizeof(lbuf) - 1] = 0;
@ -208,7 +208,7 @@ static ssize_t size_read(struct file *filp, char __user *buf, size_t count,
return err;
if (copy_to_user(buf, lbuf, err))
return -EPERM;
return -EFAULT;
*pos += err;
@ -233,7 +233,7 @@ static ssize_t limit_write(struct file *filp, const char __user *buf,
int c;
if (copy_from_user(lbuf, buf, sizeof(lbuf)))
return -EPERM;
return -EFAULT;
c = order2idx(dev, ent->order);
lbuf[sizeof(lbuf) - 1] = 0;
@ -270,7 +270,7 @@ static ssize_t limit_read(struct file *filp, char __user *buf, size_t count,
return err;
if (copy_to_user(buf, lbuf, err))
return -EPERM;
return -EFAULT;
*pos += err;