[PATCH 4.9 36/87] EDAC, amd64: Save and return err code from probe_one_instance()

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Yazen Ghannam <Yazen.Ghannam@xxxxxxx>


[ Upstream commit 2287c63643f0f52d9d5452b9dc4079aec0889fe8 ]

We should save the return code from probe_one_instance() so that it can
be returned from the module init function. Otherwise, we'll be returning
the -ENOMEM from above.

Signed-off-by: Yazen Ghannam <Yazen.Ghannam@xxxxxxx>
Cc: linux-edac <linux-edac@xxxxxxxxxxxxxxx>
Link: http://lkml.kernel.org/r/1484322741-41884-1-git-send-email-Yazen.Ghannam@xxxxxxx
Signed-off-by: Borislav Petkov <bp@xxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 drivers/edac/amd64_edac.c |    6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

--- a/drivers/edac/amd64_edac.c
+++ b/drivers/edac/amd64_edac.c
@@ -3001,14 +3001,16 @@ static int __init amd64_edac_init(void)
 	if (!msrs)
 		goto err_free;
 
-	for (i = 0; i < amd_nb_num(); i++)
-		if (probe_one_instance(i)) {
+	for (i = 0; i < amd_nb_num(); i++) {
+		err = probe_one_instance(i);
+		if (err) {
 			/* unwind properly */
 			while (--i >= 0)
 				remove_one_instance(i);
 
 			goto err_pci;
 		}
+	}
 
 	setup_pci_device();