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authorStefan Richter <stefanr@s5r6.in-berlin.de>2007-02-06 02:34:45 +0100
committerStefan Richter <stefanr@s5r6.in-berlin.de>2007-02-08 21:36:22 +0100
commit91efa462054d44ae52b0c6c8325ed5e899f2cd17 (patch)
tree5d4bd50ab5dffc16b2dafdfb037c7390f7d549a0 /drivers/ieee1394/nodemgr.c
parenta5782010b4e75cba571357efaa27df22a89427c2 (diff)
downloadtalos-op-linux-91efa462054d44ae52b0c6c8325ed5e899f2cd17.tar.gz
talos-op-linux-91efa462054d44ae52b0c6c8325ed5e899f2cd17.zip
ieee1394: fix host device registering when nodemgr disabled
Since my commit 8252bbb1363b7fe963a3eb6f8a36da619a6f5a65 in 2.6.20-rc1, host devices have a dummy driver attached. Alas the driver was not registered before use if ieee1394 was loaded with disable_nodemgr=1. This resulted in non-functional FireWire drivers or kernel lockup. http://bugzilla.kernel.org/show_bug.cgi?id=7942 Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Diffstat (limited to 'drivers/ieee1394/nodemgr.c')
-rw-r--r--drivers/ieee1394/nodemgr.c24
1 files changed, 16 insertions, 8 deletions
diff --git a/drivers/ieee1394/nodemgr.c b/drivers/ieee1394/nodemgr.c
index 6558c91674fe..ba9faeff4793 100644
--- a/drivers/ieee1394/nodemgr.c
+++ b/drivers/ieee1394/nodemgr.c
@@ -258,7 +258,6 @@ static struct device_driver nodemgr_mid_layer_driver = {
struct device nodemgr_dev_template_host = {
.bus = &ieee1394_bus_type,
.release = nodemgr_release_host,
- .driver = &nodemgr_mid_layer_driver,
};
@@ -1850,22 +1849,31 @@ int init_ieee1394_nodemgr(void)
error = class_register(&nodemgr_ne_class);
if (error)
- return error;
-
+ goto fail_ne;
error = class_register(&nodemgr_ud_class);
- if (error) {
- class_unregister(&nodemgr_ne_class);
- return error;
- }
+ if (error)
+ goto fail_ud;
error = driver_register(&nodemgr_mid_layer_driver);
+ if (error)
+ goto fail_ml;
+ /* This driver is not used if nodemgr is off (disable_nodemgr=1). */
+ nodemgr_dev_template_host.driver = &nodemgr_mid_layer_driver;
+
hpsb_register_highlevel(&nodemgr_highlevel);
return 0;
+
+fail_ml:
+ class_unregister(&nodemgr_ud_class);
+fail_ud:
+ class_unregister(&nodemgr_ne_class);
+fail_ne:
+ return error;
}
void cleanup_ieee1394_nodemgr(void)
{
hpsb_unregister_highlevel(&nodemgr_highlevel);
-
+ driver_unregister(&nodemgr_mid_layer_driver);
class_unregister(&nodemgr_ud_class);
class_unregister(&nodemgr_ne_class);
}
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