[SCSI] hpsa: Fix hpsa_find_scsi_entry so that it doesn't try to dereference NULL pointers

Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index 42295c49682f..2764cb605693 100644
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -776,6 +776,8 @@ static int hpsa_scsi_find_entry(struct hpsa_scsi_dev_t *needle,
 #define DEVICE_CHANGED 1
 #define DEVICE_SAME 2
         for (i = 0; i < haystack_size; i++) {
+                if (haystack[i] == NULL) /* previously removed. */
+                        continue;
                 if (SCSI3ADDR_EQ(needle->scsi3addr, haystack[i]->scsi3addr)) {
                         *index = i;
                         if (device_is_the_same(needle, haystack[i]))