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In soalloc(), simplify the mac_init_socket() handling to remove

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unnecessary use of a global variable and simplify the return case.
While here, use ()'s around return values.

In sodealloc(), remove a comment about why we bump the gencnt and
decrement the socket count separately.  It doesn't add
substantially to the reading, and clutters the function.

MFC after:	2 weeks
This commit is contained in:
Robert Watson 2004-12-23 00:59:43 +00:00
parent 64f13abc27
commit 81b5dbecd4
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=139215
1 changed files with 3 additions and 14 deletions
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17
sys/kern/uipc_socket.c
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@ -148,18 +148,13 @@ struct socket *
soalloc(int mflags)
{
struct socket *so;
#ifdef MAC
int error;
#endif
so = uma_zalloc(socket_zone, mflags | M_ZERO);
if (so != NULL) {
#ifdef MAC
error = mac_init_socket(so, mflags);
if (error != 0) {
if (mac_init_socket(so, mflags) != 0) {
uma_zfree(socket_zone, so);
so = NULL;
return so;
return (NULL);
}
#endif
SOCKBUF_LOCK_INIT(&so->so_snd, "so_snd");
@ -171,7 +166,7 @@ soalloc(int mflags)
++numopensockets;
mtx_unlock(&so_global_mtx);
}
return so;
return (so);
}
/*
@ -275,12 +270,6 @@ sodealloc(struct socket *so)
SOCKBUF_LOCK_DESTROY(&so->so_rcv);
/* sx_destroy(&so->so_sxlock); */
uma_zfree(socket_zone, so);
/*
* XXXRW: Seems like a shame to grab the mutex again down here, but
* we don't want to decrement the socket count until after we free
* the socket, and we can't increment the gencnt on the socket after
* we free, it so...
*/
mtx_lock(&so_global_mtx);
--numopensockets;
mtx_unlock(&so_global_mtx);