[PATCH 3/3] cxl/region: decrement ->nr_targets on error in cxl_region_attach()

[Dan Carpenter <dan.carpenter@oracle.com>]

The ++ needs a match -- on the clean up path.  If the p->nr_targets
value gets to be more than 16 it leads to uninitialized data in
cxl_port_setup_targets().

drivers/cxl/core/region.c:995 cxl_port_setup_targets() error: uninitialized symbol 'eiw'.

Fixes: 27b3f8d13830 ("cxl/region: Program target lists")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
---
 drivers/cxl/core/region.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/cxl/core/region.c b/drivers/cxl/core/region.c
index c80932bca667..0450354bff4d 100644
--- a/drivers/cxl/core/region.c
+++ b/drivers/cxl/core/region.c
@@ -1217,12 +1217,14 @@ static int cxl_region_attach(struct cxl_region *cxlr,
 	if (p->nr_targets == p->interleave_ways) {
 		rc = cxl_region_setup_targets(cxlr);
 		if (rc)
-			goto err;
+			goto err_decrement;
 		p->state = CXL_CONFIG_ACTIVE;
 	}
 
 	return 0;
 
+err_decrement:
+	p->nr_targets--;
 err:
 	for (iter = ep_port; !is_cxl_root(iter);
 	     iter = to_cxl_port(iter->dev.parent))
-- 
2.35.1