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Message-Id: <1446415120-14867-1-git-send-email-linux@roeck-us.net> Date: Sun, 1 Nov 2015 13:58:40 -0800 From: Guenter Roeck <linux@...ck-us.net> To: Bjorn Helgaas <bhelgaas@...gle.com> Cc: linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org, Guenter Roeck <linux@...ck-us.net>, Rajat Jain <rajatxjain@...il.com> Subject: [PATCH] PCI: pciehp: Always protect pciehp_disable_slot() with hotplug mutex When called from pciehp_sysfs_disable_slot(), the call to pciehp_disable_slot() was not protected by the hotplug mutex. Cc: Rajat Jain <rajatxjain@...il.com> Signed-off-by: Guenter Roeck <linux@...ck-us.net> --- drivers/pci/hotplug/pciehp_ctrl.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/pci/hotplug/pciehp_ctrl.c b/drivers/pci/hotplug/pciehp_ctrl.c index 4c8f4cde6854..880978b6d534 100644 --- a/drivers/pci/hotplug/pciehp_ctrl.c +++ b/drivers/pci/hotplug/pciehp_ctrl.c @@ -511,7 +511,9 @@ int pciehp_sysfs_disable_slot(struct slot *p_slot) case STATIC_STATE: p_slot->state = POWEROFF_STATE; mutex_unlock(&p_slot->lock); + mutex_lock(&p_slot->hotplug_lock); retval = pciehp_disable_slot(p_slot); + mutex_unlock(&p_slot->hotplug_lock); mutex_lock(&p_slot->lock); p_slot->state = STATIC_STATE; break; -- 2.1.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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