NVMe: Namespace IDs are unsigned
The 'Number of Namespaces' read from the device was being treated as
signed, which would cause us to not scan any namespaces for a device
with more than 2 billion namespaces. That led to noticing that the
namespace ID was also being treated as signed, which could lead to the
result from NVME_IOCTL_ID being treated as an error code.
Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
diff --git a/include/linux/nvme.h b/include/linux/nvme.h
index 8d00415..3403c8f 100644
--- a/include/linux/nvme.h
+++ b/include/linux/nvme.h
@@ -104,7 +104,7 @@
struct request_queue *queue;
struct gendisk *disk;
- int ns_id;
+ unsigned ns_id;
int lba_shift;
int ms;
u64 mode_select_num_blocks;