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nvme: fix memory leak freeing command effects 

xa_destroy() frees only internal data. The caller is responsible for
freeing the exteranl objects referenced by an xarray.

Fixes: 1cf7a12e09 ("nvme: use an xarray to lookup the Commands Supported and Effects log")
Signed-off-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Keith Busch 2020-11-13 10:45:45 -08:00 committed by Christoph Hellwig
parent f6224b8681
commit 8168d23fbc
1 changed files with 14 additions and 2 deletions
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16
drivers/nvme/host/core.c
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@ -4373,6 +4373,19 @@ void nvme_uninit_ctrl(struct nvme_ctrl *ctrl)
}
EXPORT_SYMBOL_GPL(nvme_uninit_ctrl);
static void nvme_free_cels(struct nvme_ctrl *ctrl)
{
struct nvme_effects_log *cel;
unsigned long i;
xa_for_each (&ctrl->cels, i, cel) {
xa_erase(&ctrl->cels, i);
kfree(cel);
}
xa_destroy(&ctrl->cels);
}
static void nvme_free_ctrl(struct device *dev)
{
struct nvme_ctrl *ctrl =
@ -4382,8 +4395,7 @@ static void nvme_free_ctrl(struct device *dev)
if (!subsys || ctrl->instance != subsys->instance)
ida_simple_remove(&nvme_instance_ida, ctrl->instance);
xa_destroy(&ctrl->cels);
nvme_free_cels(ctrl);
nvme_mpath_uninit(ctrl);
__free_page(ctrl->discard_page);