Patch "octeontx2-pf: Fix a memleak otx2_sq_init" has been added to the 5.15-stable tree

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This is a note to let you know that I've just added the patch titled

    octeontx2-pf: Fix a memleak otx2_sq_init

to the 5.15-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     octeontx2-pf-fix-a-memleak-otx2_sq_init.patch
and it can be found in the queue-5.15 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit 5c1b4ca428ff057cdc7857f8fadeed1a434f0c4e
Author: Zhipeng Lu <alexious@xxxxxxxxxx>
Date:   Thu Feb 1 20:47:13 2024 +0800

    octeontx2-pf: Fix a memleak otx2_sq_init
    
    [ Upstream commit b09b58e31b0f43d76f79b9943da3fb7c2843dcbb ]
    
    When qmem_alloc and pfvf->hw_ops->sq_aq_init fails, sq->sg should be
    freed to prevent memleak.
    
    Fixes: c9c12d339d93 ("octeontx2-pf: Add support for PTP clock")
    Signed-off-by: Zhipeng Lu <alexious@xxxxxxxxxx>
    Acked-by: Jiri Pirko <jiri@xxxxxxxxxx>
    Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c
index 572c981171ba..6b024d29eaf3 100644
--- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c
+++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c
@@ -856,8 +856,11 @@ static int otx2_sq_init(struct otx2_nic *pfvf, u16 qidx, u16 sqb_aura)
 	if (pfvf->ptp) {
 		err = qmem_alloc(pfvf->dev, &sq->timestamps, qset->sqe_cnt,
 				 sizeof(*sq->timestamps));
-		if (err)
+		if (err) {
+			kfree(sq->sg);
+			sq->sg = NULL;
 			return err;
+		}
 	}
 
 	sq->head = 0;
@@ -872,7 +875,14 @@ static int otx2_sq_init(struct otx2_nic *pfvf, u16 qidx, u16 sqb_aura)
 	sq->stats.bytes = 0;
 	sq->stats.pkts = 0;
 
-	return pfvf->hw_ops->sq_aq_init(pfvf, qidx, sqb_aura);
+	err = pfvf->hw_ops->sq_aq_init(pfvf, qidx, sqb_aura);
+	if (err) {
+		kfree(sq->sg);
+		sq->sg = NULL;
+		return err;
+	}
+
+	return 0;
 
 }
 




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