diff options
| author | Greg Kroah-Hartman <greg@kroah.com> | 2002-04-26 01:57:44 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <greg@kroah.com> | 2002-04-26 01:57:44 -0700 |
| commit | f123a327c3999f2c1affdd63d7a99d1fa672c4e2 (patch) | |
| tree | 0e6e05cb8ee251bd382c11ecac03955f11954617 /drivers/usb | |
| parent | 7cd6abc5f81d2190e2e87b7c010d4f70a64a71d3 (diff) | |
USB core
added check for num_minors at registration time to catch buggy drivers.
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/core/usb.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c index 33f880b7d883..0d85e97251e0 100644 --- a/drivers/usb/core/usb.c +++ b/drivers/usb/core/usb.c @@ -115,6 +115,11 @@ int usb_register(struct usb_driver *new_driver) { int retval = 0; + if ((new_driver->fops) && (new_driver->num_minors == 0)) { + err ("%s driver must specify num_minors", new_driver->name); + return -EINVAL; + } + #ifndef CONFIG_USB_DYNAMIC_MINORS if (new_driver->fops != NULL) { retval = usb_register_minors (new_driver, new_driver->num_minors, new_driver->minor); |