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| author |   Al Viro <viro@zeniv.linux.org.uk> | 2016-11-01 22:09:04 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2016-12-05 14:33:36 -0500 |
| commit | cbbd26b8b1a6af9c02e2b6523e12bd50cc765059 (patch) | |
| tree | 6d1b258c99e83f320cf3611bdc927121df7e9b03 /drivers/bluetooth/hci_vhci.c | |
| parent | Linux 4.9-rc7 (diff) | |
| download | linux-dev-cbbd26b8b1a6af9c02e2b6523e12bd50cc765059.tar.xz linux-dev-cbbd26b8b1a6af9c02e2b6523e12bd50cc765059.zip | |
[iov_iter] new primitives - copy_from_iter_full() and friends
copy_from_iter_full(), copy_from_iter_full_nocache() and
csum_and_copy_from_iter_full() - counterparts of copy_from_iter()
et.al., advancing iterator only in case of successful full copy
and returning whether it had been successful or not.
Convert some obvious users. *NOTE* - do not blindly assume that
something is a good candidate for those unless you are sure that
not advancing iov_iter in failure case is the right thing in
this case. Anything that does short read/short write kind of
stuff (or is in a loop, etc.) is unlikely to be a good one.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'drivers/bluetooth/hci_vhci.c')
| -rw-r--r-- | drivers/bluetooth/hci_vhci.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/bluetooth/hci_vhci.c b/drivers/bluetooth/hci_vhci.c index c4a75a18dcae..233e850fdac7 100644 --- a/drivers/bluetooth/hci_vhci.c +++ b/drivers/bluetooth/hci_vhci.c @@ -181,7 +181,7 @@ static inline ssize_t vhci_get_user(struct vhci_data *data, if (!skb) return -ENOMEM; - if (copy_from_iter(skb_put(skb, len), len, from) != len) { + if (!copy_from_iter_full(skb_put(skb, len), len, from)) { kfree_skb(skb); return -EFAULT; } |