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[PATCH] Fix ide-disk.c oops caused by hwif == NULL

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1. Move hwif_to_node to ide.h

2. Use hwif_to_node in ide-disk.c

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Christoph Lameter 2005-08-09 19:59:21 -07:00 committed by Linus Torvalds
parent aeb3f76350
commit 86b3786078
3 changed files with 7 additions and 10 deletions
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2
drivers/ide/ide-disk.c
View File

@ -1220,7 +1220,7 @@ static int ide_disk_probe(struct device *dev)
goto failed;
g = alloc_disk_node(1 << PARTN_BITS,
pcibus_to_node(drive->hwif->pci_dev->bus));
hwif_to_node(drive->hwif));
if (!g)
goto out_free_idkp;

9
drivers/ide/ide-probe.c
View File

@ -960,15 +960,6 @@ static void save_match(ide_hwif_t *hwif, ide_hwif_t *new, ide_hwif_t **match)
}
#endif /* MAX_HWIFS > 1 */
static inline int hwif_to_node(ide_hwif_t *hwif)
{
if (hwif->pci_dev)
return pcibus_to_node(hwif->pci_dev->bus);
else
/* Add ways to determine the node of other busses here */
return -1;
}
/*
* init request queue
*/

6
include/linux/ide.h
View File

@ -1501,4 +1501,10 @@ extern struct bus_type ide_bus_type;
#define ide_id_has_flush_cache_ext(id) \
(((id)->cfs_enable_2 & 0x2400) == 0x2400)
static inline int hwif_to_node(ide_hwif_t *hwif)
{
struct pci_dev *dev = hwif->pci_dev;
return dev ? pcibus_to_node(dev->bus) : -1;
}
#endif /* _IDE_H */