| Subject: [PATCH] Add missing rwlock_unlocks in xprt_register |
| |
| It looks like in b2c9430f46c4ac848957fb8adaac176a3f6ac03f when svc_run |
| switched to poll, an early return was added, but the rwlock was not |
| unlocked. |
| |
| I observed that rpcbind built against libtirpc-1.0.1 would handle only |
| one request before hanging, and tracked it down to a missing |
| rwlock_unlock here. |
| |
| Fixes: b2c9430f46c4 ('Use poll() instead of select() in svc_run()') |
| |
| Upstream-Status: Backport |
| |
| Signed-off-by: Michael Forney <mforney@mforney.org> |
| Signed-off-by: Steve Dickson <steved@redhat.com> |
| Signed-off-by: Maxin B. John <maxin.john@intel.com> |
| --- |
| src/svc.c | 7 ++++--- |
| 1 file changed, 4 insertions(+), 3 deletions(-) |
| |
| diff --git a/src/svc.c b/src/svc.c |
| index 9c41445..b59467b 100644 |
| --- a/src/svc.c |
| +++ b/src/svc.c |
| @@ -99,7 +99,7 @@ xprt_register (xprt) |
| { |
| __svc_xports = (SVCXPRT **) calloc (_rpc_dtablesize(), sizeof (SVCXPRT *)); |
| if (__svc_xports == NULL) |
| - return; |
| + goto unlock; |
| } |
| if (sock < _rpc_dtablesize()) |
| { |
| @@ -120,14 +120,14 @@ xprt_register (xprt) |
| svc_pollfd[i].fd = sock; |
| svc_pollfd[i].events = (POLLIN | POLLPRI | |
| POLLRDNORM | POLLRDBAND); |
| - return; |
| + goto unlock; |
| } |
| |
| new_svc_pollfd = (struct pollfd *) realloc (svc_pollfd, |
| sizeof (struct pollfd) |
| * (svc_max_pollfd + 1)); |
| if (new_svc_pollfd == NULL) /* Out of memory */ |
| - return; |
| + goto unlock; |
| svc_pollfd = new_svc_pollfd; |
| ++svc_max_pollfd; |
| |
| @@ -135,6 +135,7 @@ xprt_register (xprt) |
| svc_pollfd[svc_max_pollfd - 1].events = (POLLIN | POLLPRI | |
| POLLRDNORM | POLLRDBAND); |
| } |
| +unlock: |
| rwlock_unlock (&svc_fd_lock); |
| } |
| |
| -- |
| 2.5.3 |
| |