On Thu, 01 Dec 2022, Dan Williams wrote:
cxl_region_probe() allows for regions not in the 'commit' state to be
enabled. Fail probe when the region is not committed otherwise the
kernel may indicate that an address range is active when none of the
decoders are active.
Fixes: 8d48817df6ac ("cxl/region: Add region driver boiler plate")
Cc: <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Dan Williams <dan.j.williams@xxxxxxxxx>
Reviewed-by: Davidlohr Bueso <dave@xxxxxxxxxxxx>
---
drivers/cxl/core/region.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/cxl/core/region.c b/drivers/cxl/core/region.c
index f9ae5ad284ff..1bc2ebefa2a5 100644
--- a/drivers/cxl/core/region.c
+++ b/drivers/cxl/core/region.c
@@ -1923,6 +1923,9 @@ static int cxl_region_probe(struct device *dev)
*/
up_read(&cxl_region_rwsem);
+ if (rc)
+ return rc;
+
switch (cxlr->mode) {
case CXL_DECODER_PMEM:
return devm_cxl_add_pmem_region(cxlr);
