Handle async write errors

Actually get the potential except and throw something that won't cause retries. The retry occurs on the follow
up operation, which then success falsely.

1 files changed, 10 insertions, 2 deletions

diff --git a/netfs/fuse/fuseFiles.cpp b/netfs/fuse/fuseFiles.cpp
index 1c488ba..f08c1dd 100644
--- a/netfs/fuse/fuseFiles.cpp
+++ b/netfs/fuse/fuseFiles.cpp
@@ -132,8 +132,16 @@ namespace NetFS {
 				}
 				// Wait for them whilst unlocked
 				lock.release()->unlock();
-				for (const auto & r : overlap) {
-					r->future.wait();
+				try {
+					for (const auto & r : overlap) {
+						r->future.get();
+					}
+				}
+				catch (const SystemError &) {
+					throw;
+				}
+				catch (...) {
+					throw SystemError {ECOMM};
 				}
 				// Cause this thread to yield so the callback can lock mutex
 				usleep(0);