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[PATCH] bug in udev-remove.c

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Uups, we have a bug in udev-remove.c.

udev segfaults with NULL-pointer, if the device is not in the database:

  ./test.block: line 29:  4844 Segmentation fault      $BIN block
  Dec 17 22:47:42 pim udev[4882]: udev_remove_device: '/block/sdy' not found in database, falling back on default name
  Dec 17 22:47:42 pim udev[4882]: udev_remove_device: name is '(null)'
This commit is contained in:
kay.sievers@vrfy.org 2003-12-17 22:33:29 -08:00 committed by Greg KH
parent ff3633bf9d
commit a81805b9af
1 changed files with 5 additions and 3 deletions
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8
udev-remove.c
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@ -118,8 +118,8 @@ static int delete_node(struct udevice *dev)
*/
int udev_remove_device(char *path, char *subsystem)
{
char name[100];
struct udevice *dev;
struct udevice device;
char *temp;
dev = udevdb_get_dev(path);
@ -128,13 +128,15 @@ int udev_remove_device(char *path, char *subsystem)
temp = strrchr(path, '/');
if (temp == NULL)
return -ENODEV;
strncpy(name, &temp[1], sizeof(name));
memset(&device, 0, sizeof(device));
dev = &device;
strncpy(device.name, &temp[1], sizeof(device.name));
}
dbg("name is '%s'", dev->name);
udevdb_delete_dev(path);
sysbus_send_remove(name, path);
sysbus_send_remove(dev->name, path);
return delete_node(dev);
}