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Driver core: accept all valid action-strings in uevent-trigger

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This allows the uevent file to handle any type of uevent action to be
triggered by userspace instead of just the "add" uevent.


Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Kay Sievers
2007-07-08 22:29:26 +02:00
committed by Greg Kroah-Hartman
parent a6bb340da3
commit 60a96a5956
3 changed files with 47 additions and 31 deletions
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23
drivers/base/core.c
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@ -24,6 +24,8 @@
#include "base.h"
#include "power/power.h"
extern const char *kobject_actions[];
int (*platform_notify)(struct device * dev) = NULL;
int (*platform_notify_remove)(struct device * dev) = NULL;
@ -303,10 +305,25 @@ out:
static ssize_t store_uevent(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
if (memcmp(buf, "add", 3) != 0)
dev_err(dev, "uevent: unsupported action-string; this will "
"be ignored in a future kernel version");
size_t len = count;
enum kobject_action action;
if (len && buf[len-1] == '\n')
len--;
for (action = 0; action < KOBJ_MAX; action++) {
if (strncmp(kobject_actions[action], buf, len) != 0)
continue;
if (kobject_actions[action][len] != '\0')
continue;
kobject_uevent(&dev->kobj, action);
goto out;
}
dev_err(dev, "uevent: unsupported action-string; this will "
"be ignored in a future kernel version\n");
kobject_uevent(&dev->kobj, KOBJ_ADD);
out:
return count;
}