6.6-stable review patch. If anyone has any objections, please let me know.
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From: Shuai Xue xueshuai@linux.alibaba.com
commit 61d651572b6c4fe50c7b39a390760f3a910c7ccf upstream.
The idxd_cleanup_internals() function only decreases the reference count of groups, engines, and wqs but is missing the step to release memory resources.
To fix this, use the cleanup helper to properly release the memory resources.
Fixes: ddf742d4f3f1 ("dmaengine: idxd: Add missing cleanup for early error out in probe call") Cc: stable@vger.kernel.org Signed-off-by: Shuai Xue xueshuai@linux.alibaba.com Reviewed-by: Fenghua Yu fenghuay@nvidia.com Reviewed-by: Dave Jiang dave.jiang@intel.com Link: https://lore.kernel.org/r/20250404120217.48772-6-xueshuai@linux.alibaba.com Signed-off-by: Vinod Koul vkoul@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/dma/idxd/init.c | 11 +++-------- 1 file changed, 3 insertions(+), 8 deletions(-)
--- a/drivers/dma/idxd/init.c +++ b/drivers/dma/idxd/init.c @@ -397,14 +397,9 @@ static int idxd_setup_groups(struct idxd
static void idxd_cleanup_internals(struct idxd_device *idxd) { - int i; - - for (i = 0; i < idxd->max_groups; i++) - put_device(group_confdev(idxd->groups[i])); - for (i = 0; i < idxd->max_engines; i++) - put_device(engine_confdev(idxd->engines[i])); - for (i = 0; i < idxd->max_wqs; i++) - put_device(wq_confdev(idxd->wqs[i])); + idxd_clean_groups(idxd); + idxd_clean_engines(idxd); + idxd_clean_wqs(idxd); destroy_workqueue(idxd->wq); }