From b64787401fd85b66403dd05159a749e333059c0a Mon Sep 17 00:00:00 2001 From: Dominique Martinet Date: Thu, 5 Nov 2015 18:44:21 -0800 Subject: [PATCH] 9p: do not overwrite return code when locking fails If the remote locking fail, we run a local vfs unlock that should work and return success to userland when we didn't actually lock at all. We need to tell the application that tried to lock that it didn't get it, not that all went well. Signed-off-by: Dominique Martinet Cc: Eric Van Hensbergen Cc: Ron Minnich Cc: Latchesar Ionkov Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/9p/vfs_file.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/fs/9p/vfs_file.c b/fs/9p/vfs_file.c index 3abc447783aa..6b747394f6f5 100644 --- a/fs/9p/vfs_file.c +++ b/fs/9p/vfs_file.c @@ -231,7 +231,8 @@ out_unlock: if (res < 0 && fl->fl_type != F_UNLCK) { fl_type = fl->fl_type; fl->fl_type = F_UNLCK; - res = posix_lock_file_wait(filp, fl); + /* Even if this fails we want to return the remote error */ + posix_lock_file_wait(filp, fl); fl->fl_type = fl_type; } out: -- 2.20.1