From: Jes Sorensen <Jes.Sorensen@xxxxxxxxxx>
Signed-off-by: Jes Sorensen <Jes.Sorensen@xxxxxxxxxx>
---
mdstat.c | 7 ++++++-
1 files changed, 6 insertions(+), 1 deletions(-)
diff --git a/mdstat.c b/mdstat.c
index abf6bf9..6ead24c 100644
--- a/mdstat.c
+++ b/mdstat.c
@@ -131,10 +131,15 @@ struct mdstat_ent *mdstat_read(int hold, int start)
FILE *f;
struct mdstat_ent *all, *rv, **end, **insert_here;
char *line;
+ int fd;
if (hold && mdstat_fd != -1) {
lseek(mdstat_fd, 0L, 0);
- f = fdopen(dup(mdstat_fd), "r");
+ fd = dup(mdstat_fd);
+ if (fd >= 0)
+ f = fdopen(fd, "r");
+ else
+ return NULL;
} else
f = fopen("/proc/mdstat", "r");
if (f == NULL)
--
1.7.6.4
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