Revision 3fff0179e33cd7d0a688dab65700c46ad089e934 authored by Mark McLoughlin on 03 February 2009, 03:03:53 UTC, committed by Linus Torvalds on 03 February 2009, 03:17:56 UTC
The host really shouldn't be notifying us of config changes before the device status is VIRTIO_CONFIG_S_DRIVER or VIRTIO_CONFIG_S_DRIVER_OK. However, if we do happen to be interrupted while we're not attached to a driver, we really shouldn't oops. Prevent this simply by checking that device->driver is non-NULL before trying to notify the driver of config changes. Problem observed by doing a "set_link virtio.0 down" with QEMU before the net driver had been loaded. Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
1 parent 720eba3
| File | Mode | Size |
|---|---|---|
| Kconfig | -rw-r--r-- | 6.5 KB |
| Makefile | -rw-r--r-- | 1.3 KB |
| allocpercpu.c | -rw-r--r-- | 4.0 KB |
| backing-dev.c | -rw-r--r-- | 7.0 KB |
| bootmem.c | -rw-r--r-- | 17.8 KB |
| bounce.c | -rw-r--r-- | 6.5 KB |
| dmapool.c | -rw-r--r-- | 12.9 KB |
| fadvise.c | -rw-r--r-- | 3.3 KB |
| failslab.c | -rw-r--r-- | 1.3 KB |
| filemap.c | -rw-r--r-- | 65.0 KB |
| filemap_xip.c | -rw-r--r-- | 11.0 KB |
| fremap.c | -rw-r--r-- | 6.7 KB |
| highmem.c | -rw-r--r-- | 8.7 KB |
| hugetlb.c | -rw-r--r-- | 60.1 KB |
| internal.h | -rw-r--r-- | 7.9 KB |
| maccess.c | -rw-r--r-- | 1.4 KB |
| madvise.c | -rw-r--r-- | 9.5 KB |
| memcontrol.c | -rw-r--r-- | 56.9 KB |
| memory.c | -rw-r--r-- | 86.1 KB |
| memory_hotplug.c | -rw-r--r-- | 20.8 KB |
| mempolicy.c | -rw-r--r-- | 59.3 KB |
| mempool.c | -rw-r--r-- | 9.0 KB |
| migrate.c | -rw-r--r-- | 25.7 KB |
| mincore.c | -rw-r--r-- | 5.7 KB |
| mlock.c | -rw-r--r-- | 16.5 KB |
| mm_init.c | -rw-r--r-- | 3.7 KB |
| mmap.c | -rw-r--r-- | 64.1 KB |
| mmu_notifier.c | -rw-r--r-- | 8.2 KB |
| mmzone.c | -rw-r--r-- | 1.5 KB |
| mprotect.c | -rw-r--r-- | 7.5 KB |
| mremap.c | -rw-r--r-- | 11.1 KB |
| msync.c | -rw-r--r-- | 2.4 KB |
| nommu.c | -rw-r--r-- | 45.9 KB |
| oom_kill.c | -rw-r--r-- | 16.4 KB |
| page-writeback.c | -rw-r--r-- | 39.3 KB |
| page_alloc.c | -rw-r--r-- | 130.2 KB |
| page_cgroup.c | -rw-r--r-- | 10.5 KB |
| page_io.c | -rw-r--r-- | 3.4 KB |
| page_isolation.c | -rw-r--r-- | 3.6 KB |
| pagewalk.c | -rw-r--r-- | 3.2 KB |
| pdflush.c | -rw-r--r-- | 6.6 KB |
| prio_tree.c | -rw-r--r-- | 6.3 KB |
| quicklist.c | -rw-r--r-- | 2.4 KB |
| readahead.c | -rw-r--r-- | 13.4 KB |
| rmap.c | -rw-r--r-- | 34.2 KB |
| shmem.c | -rw-r--r-- | 67.9 KB |
| shmem_acl.c | -rw-r--r-- | 4.6 KB |
| slab.c | -rw-r--r-- | 115.1 KB |
| slob.c | -rw-r--r-- | 15.9 KB |
| slub.c | -rw-r--r-- | 105.9 KB |
| sparse-vmemmap.c | -rw-r--r-- | 4.2 KB |
| sparse.c | -rw-r--r-- | 16.2 KB |
| swap.c | -rw-r--r-- | 14.5 KB |
| swap_state.c | -rw-r--r-- | 10.1 KB |
| swapfile.c | -rw-r--r-- | 50.5 KB |
| thrash.c | -rw-r--r-- | 2.0 KB |
| truncate.c | -rw-r--r-- | 13.0 KB |
| util.c | -rw-r--r-- | 3.9 KB |
| vmalloc.c | -rw-r--r-- | 43.0 KB |
| vmscan.c | -rw-r--r-- | 72.6 KB |
| vmstat.c | -rw-r--r-- | 22.8 KB |
Computing file changes ...
