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| author |   mpi <mpi@openbsd.org> | 2015-09-21 11:30:50 +0000 |
|---|---|---|
| committer | mpi <mpi@openbsd.org> | 2015-09-21 11:30:50 +0000 |
| commit | c39a16beab74dad973e732ce0b856211e64eb83a (patch) | |
| tree | fd9deaaf09d680913fa45ac758e7e57b229823e5 | |
| parent | Pass the correct variable to free(9) and while here add the size. (diff) | |
| download | wireguard-openbsd-c39a16beab74dad973e732ce0b856211e64eb83a.tar.xz wireguard-openbsd-c39a16beab74dad973e732ce0b856211e64eb83a.zip | |
Document that m_free(9) and m_freem(9) now accept NULL.
From Michael McConville, ok jmc@
| -rw-r--r-- | share/man/man9/mbuf.9 | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/share/man/man9/mbuf.9 b/share/man/man9/mbuf.9 index d8dc1731c3a..9ea87e2672f 100644 --- a/share/man/man9/mbuf.9 +++ b/share/man/man9/mbuf.9 @@ -1,4 +1,4 @@ -.\" $OpenBSD: mbuf.9,v 1.88 2015/07/08 07:21:49 mpi Exp $ +.\" $OpenBSD: mbuf.9,v 1.89 2015/09/21 11:30:50 mpi Exp $ .\" .\" Copyright (c) 2001 Jean-Jacques Bernard-Gundol <jjbg@openbsd.org> .\" All rights reserved. @@ -25,7 +25,7 @@ .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. .\" -.Dd $Mdocdate: July 8 2015 $ +.Dd $Mdocdate: September 21 2015 $ .Dt MBUF 9 .Os .Sh NAME @@ -392,6 +392,13 @@ Free the mbuf pointed to by .Fa m . A pointer to the successor of the mbuf, if it exists, is returned by the function. +If +.Fa m +is a +.Dv NULL +pointer, no action occurs and +.Dv NULL +is returned. .It Fn m_get "int how" "int type" Return a pointer to an mbuf of the type specified. If the @@ -565,6 +572,11 @@ remains in existence and unchanged on failure. .It Fn m_freem "struct mbuf *m" Free the mbuf chain pointed to by .Fa m . +If +.Fa m +is a +.Dv NULL +pointer, no action occurs. .It Fn m_reclaim "void" Ask protocols to free unused memory space. .It Fn m_copydata "struct mbuf *m" "int off" "int len" "caddr_t cp" |