cciss: Add missing allocation in scsi_cmd_stack_setup and corresponding deallocation
This bit got lost somewhere along the way. Without this, panic.
Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Cc: stable@kernel.org
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
diff --git a/drivers/block/cciss_scsi.c b/drivers/block/cciss_scsi.c
index 727d022..3bfbde8 100644
--- a/drivers/block/cciss_scsi.c
+++ b/drivers/block/cciss_scsi.c
@@ -226,6 +226,13 @@
return -ENOMEM;
}
+ stk->elem = kmalloc(sizeof(stk->elem[0]) * stk->nelems, GFP_KERNEL);
+ if (!stk->elem) {
+ pci_free_consistent(h->pdev, size, stk->pool,
+ stk->cmd_pool_handle);
+ return -1;
+ }
+
for (i=0; i<CMD_STACK_SIZE; i++) {
stk->elem[i] = &stk->pool[i];
stk->elem[i]->busaddr = (__u32) (stk->cmd_pool_handle +
@@ -255,6 +262,8 @@
pci_free_consistent(h->pdev, size, stk->pool, stk->cmd_pool_handle);
stk->pool = NULL;
cciss_free_sg_chain_blocks(sa->cmd_sg_list, CMD_STACK_SIZE);
+ kfree(stk->elem);
+ stk->elem = NULL;
}
#if 0