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Date: Tue, 01 Mar 2016 23:55:05 +0000 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: <linux-kernel@...r.kernel.org> Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, <stable@...r.kernel.org>, Insu Yun <wuninsu@...il.com>, "Rafael J. Wysocki" <rafael.j.wysocki@...el.com> Subject: [PATCH 4.4 244/342] ACPI / PCI / hotplug: unlock in error path in acpiphp_enable_slot() 4.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Insu Yun <wuninsu@...il.com> 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. Signed-off-by: Insu Yun <wuninsu@...il.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com> Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org> --- drivers/pci/hotplug/acpiphp_glue.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) --- a/drivers/pci/hotplug/acpiphp_glue.c +++ b/drivers/pci/hotplug/acpiphp_glue.c @@ -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))
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