From: Akinobu Mita <akinobu.mita@gmail.com>
Date: Mon, 30 Oct 2006 21:08:04 +0000 (-0800)
Subject: acpiphp: fix missing acpiphp_glue_exit()
X-Git-Tag: firefly_0821_release~30985^2~47^2~574^2~15
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=0a9dee2739fd4385e83c3316e3f3bee641796638;p=firefly-linux-kernel-4.4.55.git

acpiphp: fix missing acpiphp_glue_exit()

acpiphp_glue_exit() needs to be called to unwind when no slots found.
(It fixes data corruption when reloading acpiphp driver with no such devices)

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/drivers/pci/hotplug/acpiphp_core.c b/drivers/pci/hotplug/acpiphp_core.c
index c57d9d5ce84e..c8b690741149 100644
--- a/drivers/pci/hotplug/acpiphp_core.c
+++ b/drivers/pci/hotplug/acpiphp_core.c
@@ -303,8 +303,10 @@ static int __init init_acpi(void)
 	/* read initial number of slots */
 	if (!retval) {
 		num_slots = acpiphp_get_num_slots();
-		if (num_slots == 0)
+		if (num_slots == 0) {
+			acpiphp_glue_exit();
 			retval = -ENODEV;
+		}
 	}
 
 	return retval;