From aa2fa24c4290da4f14a2405c40d6c1e52cb63b25 Mon Sep 17 00:00:00 2001
From: Sebastian Lackner <sebastian@fds-team.de>
Date: Sun, 6 Jan 2019 19:53:26 +0100
Subject: [PATCH] fusefrontend: Check result of Fchmod syscall.

Fixes https://github.com/rfjakob/gocryptfs/issues/328
---
 internal/fusefrontend/fs.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/internal/fusefrontend/fs.go b/internal/fusefrontend/fs.go
index f35fafd..a0e9d9f 100644
--- a/internal/fusefrontend/fs.go
+++ b/internal/fusefrontend/fs.go
@@ -204,7 +204,7 @@ func (fs *FS) openWriteOnlyFile(dirfd int, cName string, newFlags int) (*File, f
 		fs.openWriteOnlyLock.RLock()
 	}()
 	// Relax permissions and revert on return
-	syscall.Fchmod(woFd, perms|0400)
+	err = syscall.Fchmod(woFd, perms|0400)
 	if err != nil {
 		tlog.Warn.Printf("openWriteOnlyFile: changing permissions failed: %v", err)
 		return nil, fuse.ToStatus(err)