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Patch "ACPI / PCI / hotplug: unlock in error path in acpiphp_enable_slot()" has been added to the 4.4-stable tree

PATCH [email protected] 1 participant 1 message Mar 1, 2016

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This is a note to let you know that I've just added the patch titled

ACPI / PCI / hotplug: unlock in error path in acpiphp_enable_slot()

to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
acpi-pci-hotplug-unlock-in-error-path-in-acpiphp_enable_slot.patch
and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

Quoted 1 line

From 2c3033a0664dfae91e1dee7fabac10f24354b958 Mon Sep 17 00:00:00 2001

From: Insu Yun <[email protected]>
Date: Sat, 23 Jan 2016 15:44:19 -0500
Subject: ACPI / PCI / hotplug: unlock in error path in acpiphp_enable_slot()

From: Insu Yun <[email protected]>

commit 2c3033a0664dfae91e1dee7fabac10f24354b958 upstream.

In acpiphp_enable_slot(), there is a missing unlock path when error occurred. It needs to be unlocked before returning an error.

---
 drivers/pci/hotplug/acpiphp_glue.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
drivers/pci/hotplug/acpiphp_glue.c +3 -1
@@ -953,8 +953,10 @@ int acpiphp_enable_slot(struct acpiphp_s
 {
 	pci_lock_rescan_remove();
 
-	if (slot->flags & SLOT_IS_GOING_AWAY)
+	if (slot->flags & SLOT_IS_GOING_AWAY) {
+		pci_unlock_rescan_remove();
 		return -ENODEV;
+	}
 
 	/* configure all functions */
 	if (!(slot->flags & SLOT_ENABLED))

Patches currently in stable-queue which might be from [email protected] are

queue-4.4/drm-fix-missing-reference-counting-decrease.patch queue-4.4/acpi-pci-hotplug-unlock-in-error-path-in-acpiphp_enable_slot.patch queue-4.4/tipc-unlock-in-error-path.patch