imsm_num_data_members() can indicate error by returning 0 value
In such case size cannot be set based on 0 value.
Signed-off-by: Adam Kwolek <adam.kwolek@xxxxxxxxx>
---
super-intel.c | 25 ++++++++++++++++---------
1 files changed, 16 insertions(+), 9 deletions(-)
diff --git a/super-intel.c b/super-intel.c
index d6c2756..f604589 100644
--- a/super-intel.c
+++ b/super-intel.c
@@ -5178,15 +5178,22 @@ static int imsm_set_array_state(struct active_array *a, int consistent)
struct mdinfo *mdi;
used_disks = imsm_num_data_members(dev, -1);
- array_blocks = map->blocks_per_member * used_disks;
- /* round array size down to closest MB */
- array_blocks = (array_blocks >> SECT_PER_MB_SHIFT)
- << SECT_PER_MB_SHIFT;
- a->info.custom_array_size = array_blocks/2;
- a->check_reshape = 1; /* encourage manager to update
- * array size
- */
-
+ if (used_disks > 0) {
+ array_blocks =
+ map->blocks_per_member *
+ used_disks;
+ /* round array size down to closest MB
+ */
+ array_blocks = (array_blocks
+ >> SECT_PER_MB_SHIFT)
+ << SECT_PER_MB_SHIFT;
+ a->info.custom_array_size =
+ array_blocks/2;
+ /* encourage manager to update array
+ * size
+ */
+ a->check_reshape = 1;
+ }
/* finalize online capacity expansion/reshape */
for (mdi = a->info.devs; mdi; mdi = mdi->next)
imsm_set_disk(a,
--
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