Example from my testing:
```
mdadm: unexpected failure opening /dev/md127: No such device or address
```
Before it would just print:
```
mdadm: unexpected failure opening /dev/md127
```
---
mdopen.c | 4 ++--
util.c | 5 +++--
2 files changed, 5 insertions(+), 4 deletions(-)
diff --git a/mdopen.c b/mdopen.c
index 245be537..c8e5cb9d 100644
--- a/mdopen.c
+++ b/mdopen.c
@@ -444,8 +444,8 @@ int create_mddev(char *dev, char *name, int autof, int trustworthy,
}
mdfd = open_dev_excl(devnm);
if (mdfd < 0)
- pr_err("unexpected failure opening %s\n",
- devname);
+ pr_err("unexpected failure opening %s: %s\n",
+ devname, strerror(errno));
return mdfd;
}
diff --git a/util.c b/util.c
index cc94f96e..7c8c0bb1 100644
--- a/util.c
+++ b/util.c
@@ -1088,8 +1088,9 @@ int open_dev_excl(char *devnm)
long delay = 1000;
sprintf(buf, "%d:%d", major(devid), minor(devid));
+ int fd = -1;
for (i = 0; i < 25; i++) {
- int fd = dev_open(buf, flags|O_EXCL);
+ fd = dev_open(buf, flags|O_EXCL);
if (fd >= 0)
return fd;
if (errno == EACCES && flags == O_RDWR) {
@@ -1102,7 +1103,7 @@ int open_dev_excl(char *devnm)
if (delay < 200000)
delay *= 2;
}
- return -1;
+ return fd;
}
int same_dev(char *one, char *two)
--
2.35.3
