do device max_phys_sect boundary check first, otherwise
we will allocate dma_pools for devices whose max sectors
are beyond lightnvm support and register them.
Signed-off-by: Wenwei Tao <ww.tao0...@gmail.com>
---
drivers/lightnvm/core.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/drivers/lightnvm/core.c b/drivers/lightnvm/core.c
index f659e60..7ecf848 100644
--- a/drivers/lightnvm/core.c
+++ b/drivers/lightnvm/core.c
@@ -312,6 +312,11 @@ int nvm_register(struct request_queue *q, char *disk_name,
list_add(&dev->devices, &nvm_devices);
up_write(&nvm_lock);
+ if (dev->ops->max_phys_sect > 256) {
+ pr_info("nvm: max sectors supported is 256.\n");
+ return -EINVAL;
+ }
+
if (dev->ops->max_phys_sect > 1) {
dev->ppalist_pool = dev->ops->create_dma_pool(dev->q,
"ppalist");
@@ -319,9 +324,6 @@ int nvm_register(struct request_queue *q, char *disk_name,
pr_err("nvm: could not create ppa pool\n");
return -ENOMEM;
}
- } else if (dev->ops->max_phys_sect > 256) {
- pr_info("nvm: max sectors supported is 256.\n");
- return -EINVAL;
}
return 0;
--
1.9.1
--
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