Suppress failures to tear down /dev/loop devices (#591829)

Per comment #1: tearing down the loop device may or may not succeed
due to lazy unmounting of filesystem.

1 files changed, 1 insertions, 2 deletions

diff --git a/loader/undomounts.c b/loader/undomounts.c
index af5caaa4a..81eed851c 100644
--- a/loader/undomounts.c
+++ b/loader/undomounts.c
@@ -111,8 +111,7 @@ void undoLoop(struct unmountInfo * fs, int numFs, int this) {
     if ((fd = open("/tmp/loop", O_RDONLY, 0)) < 0) {
 	printf(" failed to open device: %d", errno);
     } else {
-	if (ioctl(fd, LOOP_CLR_FD, 0))
-	    printf(" LOOP_CLR_FD failed: %d", errno);
+	ioctl(fd, LOOP_CLR_FD, 0);
 	close(fd);
     }