Fix: statedump block devices OOPS

Fixes #799

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>

diff --git a/lttng-statedump-impl.c b/lttng-statedump-impl.c
index 1bf58ad43d126c8bf0d128f089a01619a6dd05a5..c8ac2d12750d210a11a9c375d2cf0f0aed39e189 100644 (file)
--- a/lttng-statedump-impl.c
+++ b/lttng-statedump-impl.c
@@ -140,6 +140,14 @@ int lttng_enumerate_block_devices(struct lttng_session *session)
                struct gendisk *disk = dev_to_disk(dev);
                struct hd_struct *part;
 
+               /*
+                * Don't show empty devices or things that have been
+                * suppressed
+                */
+               if (get_capacity(disk) == 0 ||
+                   (disk->flags & GENHD_FL_SUPPRESS_PARTITION_INFO))
+                       continue;
+
                disk_part_iter_init(&piter, disk, DISK_PITER_INCL_PART0);
                while ((part = disk_part_iter_next(&piter))) {
                        char name_buf[BDEVNAME_SIZE];