diff options
| author | Roland Dreier <rdreier@cisco.com> | 2009-01-09 22:27:42 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-01-20 20:52:08 -0800 |
| commit | 7143f7a1a3603002e4ef3719fa92e8dd6e607099 (patch) | |
| tree | e0a5bb29f730eee9184467f9d076f3d81ffc9b2d /drivers | |
| parent | f3b8436ad9a8ad36b3c9fa1fe030c7f38e5d3d0b (diff) | |
driver core: Convert '/' to '!' in dev_set_name()
Commit 3ada8b7e ("block: struct device - replace bus_id with dev_name(),
dev_set_name()") deleted the code in register_disk() that changed a '/'
to a '!' in the device name when registering a disk, but dev_set_name()
does not perform this conversion.
This leads to amusing problems with disks that have '/' in their names:
for example a failure to boot with the root partition on a cciss device,
even though the kernel says it knows about the root device:
VFS: Cannot open root device "cciss/c0d0p6" or unknown-block(0,0)
Please append a correct "root=" boot option; here are the available partitions:
6800 71652960 cciss/c0d0 driver: cciss
6802 1 cciss/c0d0p2
6805 2931831 cciss/c0d0p5
6806 34354908 cciss/c0d0p6
6810 71652960 cciss/c0d1 driver: cciss
Fix this by adding code to change '/' to '!' in dev_set_name() to handle
this until dev_set_name() is converted to use kobject_set_name().
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Acked-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/base/core.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/base/core.c b/drivers/base/core.c index 8079afca497..55e530942ab 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -777,10 +777,16 @@ static void device_remove_class_symlinks(struct device *dev) int dev_set_name(struct device *dev, const char *fmt, ...) { va_list vargs; + char *s; va_start(vargs, fmt); vsnprintf(dev->bus_id, sizeof(dev->bus_id), fmt, vargs); va_end(vargs); + + /* ewww... some of these buggers have / in the name... */ + while ((s = strchr(dev->bus_id, '/'))) + *s = '!'; + return 0; } EXPORT_SYMBOL_GPL(dev_set_name); |