diff options
| author | Guido Kiener <guido@kiener-muenchen.de> | 2018-07-24 12:05:28 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-07-24 14:50:50 +0300 |
| commit | 60207c8ef2a3a971567dd1207daa234aaa856faa (patch) | |
| tree | 50fdb30b5a23eda7dc95d604d04a71e882d018e4 | |
| parent | 12dcaeb77e67c1162a2604f6b589266baec2d1ef (diff) | |
| download | linux-60207c8ef2a3a971567dd1207daa234aaa856faa.tar.xz | |
usb: usbtmc: Add support for 32 bit compat applications
32 bit applications can only call ioctl functions on 64 bit systems
when the field .compat_ioctl is defined for file operations.
Tested-by: Dave Penkler <dpenkler@gmail.com>
Signed-off-by: Guido Kiener <guido.kiener@rohde-schwarz.com>
Reviewed-by: Steve Bayless <steve_bayless@keysight.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/usb/class/usbtmc.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/usb/class/usbtmc.c b/drivers/usb/class/usbtmc.c index 1b7b2e402adb..83ffa5a14c3d 100644 --- a/drivers/usb/class/usbtmc.c +++ b/drivers/usb/class/usbtmc.c @@ -18,6 +18,7 @@ #include <linux/poll.h> #include <linux/mutex.h> #include <linux/usb.h> +#include <linux/compat.h> #include <linux/usb/tmc.h> @@ -1459,6 +1460,9 @@ static const struct file_operations fops = { .open = usbtmc_open, .release = usbtmc_release, .unlocked_ioctl = usbtmc_ioctl, +#ifdef CONFIG_COMPAT + .compat_ioctl = usbtmc_ioctl, +#endif .fasync = usbtmc_fasync, .poll = usbtmc_poll, .llseek = default_llseek, |