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amd_iommu: do not dereference a NULL pointer address.
authorMaurizio Lombardi <mlombard@redhat.com>
Thu, 11 Sep 2014 10:28:03 +0000 (12:28 +0200)
committerJoerg Roedel <jroedel@suse.de>
Thu, 25 Sep 2014 13:58:42 +0000 (15:58 +0200)
under low memory conditions, alloc_pte() may return a NULL pointer.
iommu_map_page() does not check it and will panic the system.

Signed-off-by: Maurizio Lombardi <mlombard@redhat.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>

No differences found
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