[PATCH 1/2] nvmet-fc: One function call less in nvmet_fc_alloc_ls_iodlist() after error detection

[Markus Elfring]

From: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
Date: Wed, 27 Dec 2023 17:52:46 +0100

The kfree() function was called in one case by
the nvmet_fc_alloc_ls_iodlist() function during error handling
even if the passed data structure member contained a null pointer.
This issue was detected by using the Coccinelle software.

Thus use another label.

Signed-off-by: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
---
 drivers/nvme/target/fc.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/nvme/target/fc.c b/drivers/nvme/target/fc.c
index bd59990b5250..856a68404f32 100644
--- a/drivers/nvme/target/fc.c
+++ b/drivers/nvme/target/fc.c
@@ -553,7 +553,7 @@ nvmet_fc_alloc_ls_iodlist(struct nvmet_fc_tgtport *tgtport)
 				       sizeof(union nvmefc_ls_responses),
 				       GFP_KERNEL);
 		if (!iod->rqstbuf)
-			goto out_fail;
+			goto out_delete_entry;

 		iod->rspbuf = (union nvmefc_ls_responses *)&iod->rqstbuf[1];

@@ -568,6 +568,7 @@ nvmet_fc_alloc_ls_iodlist(struct nvmet_fc_tgtport *tgtport)

 out_fail:
 	kfree(iod->rqstbuf);
+out_delete_entry:
 	list_del(&iod->ls_rcv_list);
 	for (iod--, i--; i >= 0; iod--, i--) {
 		fc_dma_unmap_single(tgtport->dev, iod->rspdma,
--
2.43.0