Commit f34c73f5 authored Oct 20, 2015 by Joerg Roedel

iommu/amd: Do not BUG_ON in __detach_device()



The condition in the BUG_ON is an indicator of a BUG, but no
reason to kill the code path. Turn it into a WARN_ON and
bail out if it is hit.

Signed-off-by: Joerg Roedel <jroedel@suse.de>

parent a591989a

drivers/iommu/amd_iommu.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -2204,7 +2204,8 @@ static void __detach_device(struct iommu_dev_data *dev_data)
		struct protection_domain *domain;
		unsigned long flags;

		BUG_ON(!dev_data->domain);
		if (WARN_ON(!dev_data->domain))
		return;

		domain = dev_data->domain;