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xpp: stability -- better debug information

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Signed-off-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>
This commit is contained in:
Oron Peled 2014-05-12 10:09:22 -04:00 committed by Tzafrir Cohen
parent dfa7304f51
commit 235d530fee
1 changed files with 6 additions and 2 deletions
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8
drivers/dahdi/xpp/xbus-sysfs.c
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@ -30,6 +30,7 @@
#include <linux/workqueue.h>
#include <linux/device.h>
#include <linux/delay.h> /* for msleep() to debug */
#include <linux/sched.h>
#include "xpd.h"
#include "xpp_dahdi.h"
#include "xbus-core.h"
@ -967,10 +968,13 @@ void xbus_sysfs_remove(xbus_t *xbus)
struct device *astribank;
BUG_ON(!xbus);
XBUS_DBG(DEVICES, xbus, "\n");
astribank = &xbus->astribank;
if (!dev_get_drvdata(astribank))
if (!dev_get_drvdata(astribank)) {
XBUS_NOTICE(xbus, "%s: already removed\n", __func__);
return;
}
XBUS_DBG(DEVICES, xbus, "going to unregister: refcount=%d\n",
atomic_read(&astribank->kobj.kref.refcount));
BUG_ON(dev_get_drvdata(astribank) != xbus);
device_unregister(astribank);
dev_set_drvdata(astribank, NULL);