This is a note to let you know that I've just added the patch titled
IB/mlx5: Add missing error code
to the 5.4-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:
ib-mlx5-add-missing-error-code.patch
and it can be found in the queue-5.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 19c2708d1c3bcf6f9cca024e906a06adc5340ed7
Author: YueHaibing <yuehaibing@xxxxxxxxxx>
Date: Mon Feb 22 20:23:43 2021 +0800
IB/mlx5: Add missing error code
[ Upstream commit 3a9b3d4536e0c25bd3906a28c1f584177e49dd0f ]
Set err to -ENOMEM if kzalloc fails instead of 0.
Fixes: 759738537142 ("IB/mlx5: Enable subscription for device events over DEVX")
Link: https://lore.kernel.org/r/20210222122343.19720-1-yuehaibing@xxxxxxxxxx
Signed-off-by: YueHaibing <yuehaibing@xxxxxxxxxx>
Acked-by: Leon Romanovsky <leonro@xxxxxxxxxx>
Signed-off-by: Jason Gunthorpe <jgg@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/infiniband/hw/mlx5/devx.c b/drivers/infiniband/hw/mlx5/devx.c
index 4d6f25fdcc0e..664e0f374ac0 100644
--- a/drivers/infiniband/hw/mlx5/devx.c
+++ b/drivers/infiniband/hw/mlx5/devx.c
@@ -2022,8 +2022,10 @@ static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_SUBSCRIBE_EVENT)(
num_alloc_xa_entries++;
event_sub = kzalloc(sizeof(*event_sub), GFP_KERNEL);
- if (!event_sub)
+ if (!event_sub) {
+ err = -ENOMEM;
goto err;
+ }
list_add_tail(&event_sub->event_list, &sub_list);
if (use_eventfd) {
