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| author | Randy Dunlap <rdunlap@xenotime.net> | 2006-10-03 01:14:23 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-10-03 08:04:08 -0700 |
| commit | 349ae23fe7379a42973bcb1c85f7d43ec583c17d (patch) | |
| tree | 2f885e437a59a23f04161e9761b86a8421ab6ff7 /drivers/ide/ide-proc.c | |
| parent | 5ac24697699b394cdebac0a2329ce3af247d6a3b (diff) | |
| download | op-kernel-dev-349ae23fe7379a42973bcb1c85f7d43ec583c17d.zip op-kernel-dev-349ae23fe7379a42973bcb1c85f7d43ec583c17d.tar.gz | |
[PATCH] IDE core: driver layer error checking
Check driver layer return values in IDE core.
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/ide/ide-proc.c')
| -rw-r--r-- | drivers/ide/ide-proc.c | 22 |
1 files changed, 18 insertions, 4 deletions
diff --git a/drivers/ide/ide-proc.c b/drivers/ide/ide-proc.c index 41b74b1..aa049dab 100644 --- a/drivers/ide/ide-proc.c +++ b/drivers/ide/ide-proc.c @@ -326,15 +326,24 @@ static int ide_replace_subdriver(ide_drive_t *drive, const char *driver) { struct device *dev = &drive->gendev; int ret = 1; + int err; down_write(&dev->bus->subsys.rwsem); device_release_driver(dev); /* FIXME: device can still be in use by previous driver */ strlcpy(drive->driver_req, driver, sizeof(drive->driver_req)); - device_attach(dev); + err = device_attach(dev); + if (err < 0) + printk(KERN_WARNING "IDE: %s: device_attach error: %d\n", + __FUNCTION__, err); drive->driver_req[0] = 0; - if (dev->driver == NULL) - device_attach(dev); + if (dev->driver == NULL) { + err = device_attach(dev); + if (err < 0) + printk(KERN_WARNING + "IDE: %s: device_attach(2) error: %d\n", + __FUNCTION__, err); + } if (dev->driver && !strcmp(dev->driver->name, driver)) ret = 0; up_write(&dev->bus->subsys.rwsem); @@ -526,7 +535,12 @@ static int proc_print_driver(struct device_driver *drv, void *data) static int ide_drivers_show(struct seq_file *s, void *p) { - bus_for_each_drv(&ide_bus_type, NULL, s, proc_print_driver); + int err; + + err = bus_for_each_drv(&ide_bus_type, NULL, s, proc_print_driver); + if (err < 0) + printk(KERN_WARNING "IDE: %s: bus_for_each_drv error: %d\n", + __FUNCTION__, err); return 0; } |
