A-Team_Digital_Solutions/android_kernel_motorola_sm6375
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make sock_alloc_file() do sock_release() on failures

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This changes calling conventions (and simplifies the hell out
the callers).  New rules: once struct socket had been passed
to sock_alloc_file(), it's been consumed either by struct file
or by sock_release() done by sock_alloc_file().  Either way
the caller should not do sock_release() after that point.

Reviewed-by: Eric Dumazet <[email protected]>
Signed-off-by: Al Viro <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Al Viro 2017-12-05 23:29:09 +00:00 • committed by David S. Miller
commit 8e1611e235
5 changed files with 11 additions and 31 deletions
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7
net/kcm/kcmsock.c
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@ -1629,7 +1629,6 @@ static struct file *kcm_clone(struct socket *osock)
{
struct socket *newsock;
struct sock *newsk;
struct file *file;
newsock = sock_alloc();
if (!newsock)
@ -1649,11 +1648,7 @@ static struct file *kcm_clone(struct socket *osock)
sock_init_data(newsock, newsk);
init_kcm_sock(kcm_sk(newsk), kcm_sk(osock->sk)->mux);
file = sock_alloc_file(newsock, 0, osock->sk->sk_prot_creator->name);
if (IS_ERR(file))
sock_release(newsock);
return file;
return sock_alloc_file(newsock, 0, osock->sk->sk_prot_creator->name);
}
static int kcm_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)