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authorSamuel Thibault <samuel.thibault@ens-lyon.org>2015-10-11 22:14:18 +0200
committerSamuel Thibault <samuel.thibault@ens-lyon.org>2015-10-11 22:14:18 +0200
commit1fa0cec1b643483918933b5d6a419e77d6e16c6d (patch)
tree4078d281213484d7ad45741ab4fd113b77496724 /libnetfs
parentbd7e7ae44c78bcfe623dec8636375685c8c30be3 (diff)
Make netfs_S_io_reauthenticate handle allocation errors
* libnetfs/io-reauthenticate.c (netfs_S_io_reauthenticate): Loop when netfs_make_protid fails with EINTR, return error when it fails otherwise.
Diffstat (limited to 'libnetfs')
-rw-r--r--libnetfs/io-reauthenticate.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/libnetfs/io-reauthenticate.c b/libnetfs/io-reauthenticate.c
index 91928130..8ff4182b 100644
--- a/libnetfs/io-reauthenticate.c
+++ b/libnetfs/io-reauthenticate.c
@@ -31,8 +31,18 @@ netfs_S_io_reauthenticate (struct protid *user, mach_port_t rend_port)
if (!user)
return EOPNOTSUPP;
+ /* This routine must carefully ignore EINTR because we
+ are a simpleroutine, so callers won't know to restart. */
+
pthread_mutex_lock (&user->po->np->lock);
- newpi = netfs_make_protid (user->po, 0);
+ do
+ newpi = netfs_make_protid (user->po, 0);
+ while (! newpi && errno == EINTR);
+ if (! newpi)
+ {
+ pthread_mutex_unlock (&user->po->np->lock);
+ return errno;
+ }
newright = ports_get_send_right (newpi);
assert (newright != MACH_PORT_NULL);