Date: Mon, 10 Nov 2014 08:31:57 +0000 (UTC) From: Luigi Rizzo <luigi@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r274338 - head/sys/net Message-ID: <201411100831.sAA8VvIf028192@svn.freebsd.org>
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Author: luigi Date: Mon Nov 10 08:31:56 2014 New Revision: 274338 URL: https://svnweb.freebsd.org/changeset/base/274338 Log: return kernel-supplied error if available. Also fix field names in a comment. Modified: head/sys/net/netmap_user.h Modified: head/sys/net/netmap_user.h ============================================================================== --- head/sys/net/netmap_user.h Mon Nov 10 08:20:21 2014 (r274337) +++ head/sys/net/netmap_user.h Mon Nov 10 08:31:56 2014 (r274338) @@ -40,7 +40,7 @@ * From there: * struct netmap_ring *NETMAP_TXRING(nifp, index) * struct netmap_ring *NETMAP_RXRING(nifp, index) - * we can access ring->nr_cur, ring->nr_avail, ring->nr_flags + * we can access ring->cur, ring->head, ring->tail, etc. * * ring->slot[i] gives us the i-th slot (we can access * directly len, flags, buf_idx) @@ -543,7 +543,8 @@ fail: nm_close(d); if (errmsg) D("%s %s", errmsg, ifname); - errno = EINVAL; + if (errno == 0) + errno = EINVAL; return NULL; }
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