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| author | Michel Dänzer <michel.daenzer@amd.com> | 2015-01-19 17:53:20 +0900 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2015-05-09 23:16:13 +0100 |
| commit | f50587eec5cd5e7d78744f54364a14bb6b55adcc (patch) | |
| tree | 7df66e9245a9b62f909a5ae15c813970ab604b48 /virt/kvm/async_pf.c | |
| parent | 16a0a3f34da7ba0054fe923156de1da87b933644 (diff) | |
| download | kernel_samsung_smdk4412-f50587eec5cd5e7d78744f54364a14bb6b55adcc.zip kernel_samsung_smdk4412-f50587eec5cd5e7d78744f54364a14bb6b55adcc.tar.gz kernel_samsung_smdk4412-f50587eec5cd5e7d78744f54364a14bb6b55adcc.tar.bz2 | |
PCI: Fix infinite loop with ROM image of size 0
commit 16b036af31e1456cb69243a5a0c9ef801ecd1f17 upstream.
If the image size would ever read as 0, pci_get_rom_size() could keep
processing the same image over and over again. Exit the loop if we ever
read a length of zero.
This fixes a soft lockup on boot when the radeon driver calls
pci_get_rom_size() on an AMD Radeon R7 250X PCIe discrete graphics card.
[bhelgaas: changelog, reference]
Link: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1386973
Reported-by: Federico <federicotg@gmail.com>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Diffstat (limited to 'virt/kvm/async_pf.c')
0 files changed, 0 insertions, 0 deletions