Fix bogus error checking on unique_fd

The expression "!fd" calls the implicit conversion to int, but comparing
the raw fd against 0 does not work, since open() and other POSIX calls
returning a file descriptor use -1 to signal an error.

Test: m recovery
Change-Id: I0847c276f39cb9dd09c7ffb96951276113418fc8

1 files changed, 1 insertions, 1 deletions

diff --git a/fuse_sideload/fuse_sideload.cpp b/fuse_sideload/fuse_sideload.cpp
index b5b6ac15..3d948030 100644
--- a/fuse_sideload/fuse_sideload.cpp
+++ b/fuse_sideload/fuse_sideload.cpp
@@ -392,7 +392,7 @@ int run_fuse_sideload(std::unique_ptr<FuseDataProvider>&& provider, const char*
   }
 
   fd.ffd.reset(open("/dev/fuse", O_RDWR));
-  if (!fd.ffd) {
+  if (fd.ffd == -1) {
     perror("open /dev/fuse");
     result = -1;
     goto done;