diff options
| author |   Randy Dunlap <rdunlap@xenotime.net> | 2012-06-11 16:35:50 -0700 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-06-11 16:49:35 -0700 |
| commit | 78b10615ad295393a7d66ea57218171c0a07c059 (patch) | |
| tree | 5f5654b78d6af51d2d38baa498ad6652cf6fb74e /drivers/staging | |
| parent | staging: omapdrm: fix crash when freeing bad fb (diff) | |
| download | linux-dev-78b10615ad295393a7d66ea57218171c0a07c059.tar.xz linux-dev-78b10615ad295393a7d66ea57218171c0a07c059.zip | |
staging/comedi: fix build for USB not enabled
Calls to optional subsystems cannot be made indiscriminately.
Enclose all of the usb helper functions inside
#if IS_ENABLED(CONFIG_USB)
to fix these build errors.
(The pci helper functions are OK since there are stubs in
linux/pci.h for the called functions when PCI is not enabled.
Possibly the same could be done for the called USB functions.)
ERROR: "usb_deregister" [drivers/staging/comedi/comedi.ko] undefined!
ERROR: "usb_register_driver" [drivers/staging/comedi/comedi.ko] undefined!
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Cc: Ian Abbott <abbotti@mev.co.uk>
Cc: Frank Mori Hess <fmhess@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging')
| -rw-r--r-- | drivers/staging/comedi/drivers.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/staging/comedi/drivers.c b/drivers/staging/comedi/drivers.c index 1c3d6386ea36..aeac1caba3f9 100644 --- a/drivers/staging/comedi/drivers.c +++ b/drivers/staging/comedi/drivers.c @@ -30,6 +30,7 @@ #include <linux/pci.h> #include <linux/usb.h> #include <linux/errno.h> +#include <linux/kconfig.h> #include <linux/kernel.h> #include <linux/sched.h> #include <linux/fcntl.h> @@ -981,6 +982,8 @@ void comedi_pci_driver_unregister(struct comedi_driver *comedi_driver, } EXPORT_SYMBOL_GPL(comedi_pci_driver_unregister); +#if IS_ENABLED(CONFIG_USB) + static int comedi_old_usb_auto_config(struct usb_interface *intf, struct comedi_driver *driver) { @@ -1043,3 +1046,5 @@ void comedi_usb_driver_unregister(struct comedi_driver *comedi_driver, comedi_driver_unregister(comedi_driver); } EXPORT_SYMBOL_GPL(comedi_usb_driver_unregister); + +#endif |