Commit 5aace139 authored by Liu Xiaodong's avatar Liu Xiaodong Committed by Jim Harris
Browse files

lib/nvme: tolerate abnormal char device 



In some special cases, NVMe device with cdata.nn=0
may be used to do validation or other test work.
cdata.nn=0 means the device can't support NS at all.

Change-Id: I55f75a8cb21b8d1b99c5318e27c876a4371d6dd4
Signed-off-by: default avatarLiu Xiaodong <xiaodong.liu@intel.com>
Reviewed-on: https://review.gerrithub.io/432191


Tested-by: default avatarSPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: default avatarjoevannip <jparairo@nvxltech.com>
Reviewed-by: default avatarBen Walker <benjamin.walker@intel.com>
Reviewed-by: default avatarShuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: default avatarJim Harris <james.r.harris@intel.com>
parent e93d56b1

lib/nvme/nvme_ctrlr.c

+6 −0
Original line number Diff line number Diff line
@@ -909,6 +909,12 @@ nvme_ctrlr_identify_active_ns(struct spdk_nvme_ctrlr *ctrlr) 
	uint32_t				next_nsid = 0;

	uint32_t				*new_ns_list = NULL;



	if (ctrlr->num_ns == 0) {

		spdk_dma_free(ctrlr->active_ns_list);

		ctrlr->active_ns_list = NULL;



		return 0;

	}



	/*

	 * The allocated size must be a multiple of sizeof(struct spdk_nvme_ns_list)