mount_bsd: Show errors when syscalls failed

Log on unmount() and close() failure

Signed-off-by: Vassili Tchersky <vt+git@vbcy.org>

diff --git a/lib/mount_bsd.c b/lib/mount_bsd.c
index ba17240ec3be4ee95c7a4e7ae14ba998605536df..0e841df5f74dd1d313cc8ec27ab70d17ccb42841 100644 (file)
--- a/lib/mount_bsd.c
+++ b/lib/mount_bsd.c
@@ -128,8 +128,11 @@ static int fuse_mount_opt_proc(void *data, const char *arg, int key,
 
 void fuse_kern_unmount(const char *mountpoint, int fd)
 {
-       close(fd);
-       unmount(mountpoint, MNT_FORCE);
+       if (close(fd) < 0)
+               fuse_log(FUSE_LOG_ERR, "closing FD %d failed: %s", fd, strerror(errno));
+       if (unmount(mountpoint, MNT_FORCE) < 0)
+               fuse_log(FUSE_LOG_ERR, "unmounting %s failed: %s",
+                       mountpoint, strerror(errno));
 }
 
 static int fuse_mount_core(const char *mountpoint, const char *opts)
@@ -220,7 +223,8 @@ mount:
 
        if (waitpid(cpid, &status, 0) == -1 || WEXITSTATUS(status) != 0) {
                perror("fuse: failed to mount file system");
-               close(fd);
+               if (close(fd) < 0)
+                       perror("fuse: closing FD");
                return -1;
        }