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dax/bus: Use dax_region_put() in alloc_dax_region() error path

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alloc_dax_region() calls kref_init() on the dax_region early in the
function, but the error path for sysfs_create_groups() failure uses
kfree() directly to free the dax_region. This bypasses the kref lifecycle.

Use dax_region_put() instead to handle kref lifecycle correctly.

Suggested-by: Jonathan Cameron <jonathan.cameron@huawei.com>
Signed-off-by: Smita Koralahalli <Smita.KoralahalliChannabasappa@amd.com>
Reviewed-by: Jonathan Cameron <jonathan.cameron@huawei.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Link: https://patch.msgid.link/20260322195343.206900-2-Smita.KoralahalliChannabasappa@amd.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
This commit is contained in:
Smita Koralahalli
2026-03-22 19:53:34 +00:00
committed by Dave Jiang
parent f338e77383
commit 14f2e2ebf3
1 changed files with 1 additions and 1 deletions
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2
drivers/dax/bus.c
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@@ -668,7 +668,7 @@ struct dax_region *alloc_dax_region(struct device *parent, int region_id,
};
if (sysfs_create_groups(&parent->kobj, dax_region_attribute_groups)) {
kfree(dax_region);
dax_region_put(dax_region);
return NULL;
}