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authorColin Ian King <colin.king@canonical.com>2016-09-05 16:24:38 +0100
committerSagi Grimberg <sagi@grimberg.me>2016-09-12 22:29:42 +0300
commit1bda18de8f15a611a61d1a935b679db2e153338a (patch)
treeb6857c838be60b5390c31aa1f42aa54a66328723 /drivers/nvme
parente87a911fed07e368c6f97e75152e6297a7dfba48 (diff)
downloadlinux-1bda18de8f15a611a61d1a935b679db2e153338a.tar.bz2
nvme-rdma: fix null pointer dereference on req->mr
If there is an error on req->mr, req->mr is set to null, however the following statement sets req->mr->need_inval causing a null pointer dereference. Fix this by bailing out to label 'out' to immediately return and hence skip over the offending null pointer dereference. Fixes: f5b7b559e1488 ("nvme-rdma: Get rid of duplicate variable") Signed-off-by: Colin Ian King <colin.king@canonical.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Diffstat (limited to 'drivers/nvme')
-rw-r--r--drivers/nvme/host/rdma.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/nvme/host/rdma.c b/drivers/nvme/host/rdma.c
index d6bdf55a969e..c2c2c28e6eb5 100644
--- a/drivers/nvme/host/rdma.c
+++ b/drivers/nvme/host/rdma.c
@@ -293,6 +293,7 @@ static int nvme_rdma_reinit_request(void *data, struct request *rq)
if (IS_ERR(req->mr)) {
ret = PTR_ERR(req->mr);
req->mr = NULL;
+ goto out;
}
req->mr->need_inval = false;