From: Matt Evans Date: Tue, 31 Jan 2012 06:30:41 +0000 (+1100) Subject: kvm tools: Repair running on non ioeventfd-capable platforms X-Git-Tag: next-20120402~5^2~36 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=44287ddffd44815970aa3d5de5acbc205c3a069c;p=karo-tx-linux.git kvm tools: Repair running on non ioeventfd-capable platforms Commit d3923126a24212f1e746a84a575dadbd9f259418 added a bunch of nice error checking around ioevent__init() but the init may gracefully fail if ioevents simply aren't supported (PPC64 KVM). This commit adds a new return code for the init -- positive, but identifiable as 'not success 0'. Signed-off-by: Matt Evans Signed-off-by: Pekka Enberg --- diff --git a/tools/kvm/ioeventfd.c b/tools/kvm/ioeventfd.c index 9133101ebb02..f2d5a302ff27 100644 --- a/tools/kvm/ioeventfd.c +++ b/tools/kvm/ioeventfd.c @@ -67,7 +67,7 @@ int ioeventfd__init(struct kvm *kvm) ioeventfd_avail = kvm__supports_extension(kvm, KVM_CAP_IOEVENTFD); if (!ioeventfd_avail) - return -ENOSYS; + return 1; /* Not fatal, but let caller determine no-go. */ epoll_fd = epoll_create(IOEVENTFD_MAX_EVENTS); if (epoll_fd < 0)