Grow: fix crash when restarting an array.

After the 'started' label it is assumed that 'sra' is set, so better
set it when jumping there.

Signed-off-by: NeilBrown <neilb@suse.de>

1 files changed, 10 insertions, 0 deletions

diff --git a/Grow.c b/Grow.c
index 8e4594d6..1d0c7ce2 100644
--- a/Grow.c
+++ b/Grow.c
@@ -2835,6 +2835,16 @@ static int reshape_array(char *container, int fd, char *devname,
 			return 0;
 		if (restart & RESHAPE_NO_BACKUP)
 			return 0;
+
+		/* Need 'sra' down at 'started:' */
+		sra = sysfs_read(fd, NULL,
+				 GET_COMPONENT|GET_DEVS|GET_OFFSET|GET_STATE|GET_CHUNK|
+				 GET_CACHE);
+		if (!sra) {
+			pr_err("%s: Cannot get array details from sysfs\n",
+			       devname);
+			goto release;
+		}
 		goto started;
 	}
 	/* The container is frozen but the array may not be.