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authorHannes Reinecke <hare@suse.de>2018-08-07 12:43:42 +0200
committerChristoph Hellwig <hch@lst.de>2018-08-07 14:40:27 +0200
commit8f220c418d070a097f7d292cf6b37f88d67845ad (patch)
tree54596534a95595541a9be00cc2fc78239ab0c04d /drivers
parentf10fe9d85dc0802b54519c917716e6f0092b4ce7 (diff)
nvme: fixup crash on failed discovery
When the initial discovery fails the subsystem hasn't been setup yet in nvme_mpath_stop, and we can't dereference ctrl->subsys. Fixes: 0d0b660f ("nvme: add ANA support") Signed-off-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/nvme/host/multipath.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/nvme/host/multipath.c b/drivers/nvme/host/multipath.c
index c643872f8dac..5a9562881d4e 100644
--- a/drivers/nvme/host/multipath.c
+++ b/drivers/nvme/host/multipath.c
@@ -22,7 +22,7 @@ MODULE_PARM_DESC(multipath,
inline bool nvme_ctrl_use_ana(struct nvme_ctrl *ctrl)
{
- return multipath && (ctrl->subsys->cmic & (1 << 3));
+ return multipath && ctrl->subsys && (ctrl->subsys->cmic & (1 << 3));
}
/*