Patch "cxl/region: Fix cxlr_pmem leaks" has been added to the 6.8-stable tree

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

    cxl/region: Fix cxlr_pmem leaks

to the 6.8-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:
     cxl-region-fix-cxlr_pmem-leaks.patch
and it can be found in the queue-6.8 subdirectory.

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



commit 79be1ef9b03ea879d17e9503c5c9ca3a8768801d
Author: Li Zhijian <lizhijian@xxxxxxxxxxx>
Date:   Sun Apr 28 11:07:48 2024 +0800

    cxl/region: Fix cxlr_pmem leaks
    
    [ Upstream commit 1c987cf22d6b65ade46145c03eef13f0e3e81d83 ]
    
    Before this error path, cxlr_pmem pointed to a kzalloc() memory, free
    it to avoid this memory leaking.
    
    Fixes: f17b558d6663 ("cxl/pmem: Refactor nvdimm device registration, delete the workqueue")
    Signed-off-by: Li Zhijian <lizhijian@xxxxxxxxxxx>
    Reviewed-by: Dan Williams <dan.j.williams@xxxxxxxxx>
    Reviewed-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
    Link: https://lore.kernel.org/r/20240428030748.318985-1-lizhijian@xxxxxxxxxxx
    Signed-off-by: Dave Jiang <dave.jiang@xxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/cxl/core/region.c b/drivers/cxl/core/region.c
index 4c7fd2d5cccb2..2aaff86869b7e 100644
--- a/drivers/cxl/core/region.c
+++ b/drivers/cxl/core/region.c
@@ -2550,6 +2550,7 @@ static struct cxl_pmem_region *cxl_pmem_region_alloc(struct cxl_region *cxlr)
 		if (i == 0) {
 			cxl_nvb = cxl_find_nvdimm_bridge(cxlmd);
 			if (!cxl_nvb) {
+				kfree(cxlr_pmem);
 				cxlr_pmem = ERR_PTR(-ENODEV);
 				goto out;
 			}




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