regenerate cache if it's zero sized

Sometimes when systems go a bit haywire, the cache file is
written out as a zero byte file. We're still debugging this,
but in the case of a zero byte cache, just regenerate it anyway

1 files changed, 4 insertions, 0 deletions

diff --git a/hald/mmap_cache.c b/hald/mmap_cache.c
index 6125cf01..cc1ffa59 100644
--- a/hald/mmap_cache.c
+++ b/hald/mmap_cache.c
@@ -265,6 +265,10 @@ di_cache_coherency_check (gboolean setup_watches)
 			HAL_INFO(("Cache needs update"));
 			regen_cache();
 			did_regen = TRUE;
+		} else if (st.st_size == 0) {
+			HAL_INFO(("Cache zero size, so regenerating"));
+			regen_cache();
+			did_regen = TRUE;
 		}
 	} else {
 		regen_cache();