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| author | Andi Kleen <andi@firstfloor.org> | 2008-02-11 01:35:20 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2008-02-11 09:20:50 -0800 |
| commit | 1f07e988290fc45932f5028c9e2a862c37a57336 (patch) | |
| tree | db0a20e2ead6a865af786e09e90ce1159a277c9e /include/linux/ide.h | |
| parent | 0c0d61ca93d111c521182c0909e478fa709e05c6 (diff) | |
| download | kernel_samsung_smdk4412-1f07e988290fc45932f5028c9e2a862c37a57336.zip kernel_samsung_smdk4412-1f07e988290fc45932f5028c9e2a862c37a57336.tar.gz kernel_samsung_smdk4412-1f07e988290fc45932f5028c9e2a862c37a57336.tar.bz2 | |
Prevent IDE boot ops on NUMA system
Without this patch a Opteron test system here oopses at boot with
current git.
Calling to_pci_dev() on a NULL pointer gives a negative value so the
following NULL pointer check never triggers and then an illegal address
is referenced. Check the unadjusted original device pointer for NULL
instead.
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/ide.h')
| -rw-r--r-- | include/linux/ide.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/ide.h b/include/linux/ide.h index 23fad89..a3b69c1 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -1295,7 +1295,7 @@ static inline void ide_dump_identify(u8 *id) static inline int hwif_to_node(ide_hwif_t *hwif) { struct pci_dev *dev = to_pci_dev(hwif->dev); - return dev ? pcibus_to_node(dev->bus) : -1; + return hwif->dev ? pcibus_to_node(dev->bus) : -1; } static inline ide_drive_t *ide_get_paired_drive(ide_drive_t *drive) |