It can occurs that during walking container end conditions bases on "map"
function return value, so function can be protected for wrong data input.
Signed-off-by: Adam Kwolek <adam.kwolek@xxxxxxxxx>
---
super-intel.c | 9 ++++++++-
1 files changed, 8 insertions(+), 1 deletions(-)
diff --git a/super-intel.c b/super-intel.c
index d747322..1ac6bc2 100644
--- a/super-intel.c
+++ b/super-intel.c
@@ -435,8 +435,12 @@ static size_t sizeof_imsm_map(struct imsm_map *map)
struct imsm_map *get_imsm_map(struct imsm_dev *dev, int second_map)
{
- struct imsm_map *map = &dev->vol.map[0];
+ struct imsm_map *map;
+
+ if (dev == NULL)
+ return NULL;
+ map = &dev->vol.map[0];
if (second_map && !dev->vol.migr_state)
return NULL;
else if (second_map) {
@@ -1517,6 +1521,9 @@ static void getinfo_super_imsm_volume(struct supertype *st, struct mdinfo *info,
char *devname;
int map_disks = info->array.raid_disks;
+ if (map == NULL)
+ return;
+
for (dl = super->disks; dl; dl = dl->next)
if (dl->raiddisk == info->disk.raid_disk)
break;
--
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