Replace obd_ioctl_popdata() with direct copy_to_user() call. Signed-off-by: James Simmons <uja.ornl@xxxxxxxxx> Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6401 Reviewed-on: https://review.whamcloud.com/24568 Reviewed-by: Andreas Dilger <andreas.dilger@xxxxxxxxx> Reviewed-by: Ben Evans <bevans@xxxxxxxx> Reviewed-by: Oleg Drokin <oleg.drokin@xxxxxxxxx> Signed-off-by: James Simmons <jsimmons@xxxxxxxxxxxxx> --- .../lustre/lustre/include/lustre/lustre_ioctl.h | 1 - drivers/staging/lustre/lustre/obdclass/class_obd.c | 18 +++++++----------- .../lustre/lustre/obdclass/linux/linux-module.c | 8 -------- 3 files changed, 7 insertions(+), 20 deletions(-) diff --git a/drivers/staging/lustre/lustre/include/lustre/lustre_ioctl.h b/drivers/staging/lustre/lustre/include/lustre/lustre_ioctl.h index 7a61a00..da9a071 100644 --- a/drivers/staging/lustre/lustre/include/lustre/lustre_ioctl.h +++ b/drivers/staging/lustre/lustre/include/lustre/lustre_ioctl.h @@ -209,7 +209,6 @@ static inline int obd_ioctl_is_invalid(struct obd_ioctl_data *data) } int obd_ioctl_getdata(char **buf, int *len, void __user *arg); -int obd_ioctl_popdata(void __user *arg, void *data, int len); /* * OBD_IOC_DATA_TYPE is only for compatibility reasons with older diff --git a/drivers/staging/lustre/lustre/obdclass/class_obd.c b/drivers/staging/lustre/lustre/obdclass/class_obd.c index 8cc1fdc..477d611 100644 --- a/drivers/staging/lustre/lustre/obdclass/class_obd.c +++ b/drivers/staging/lustre/lustre/obdclass/class_obd.c @@ -206,8 +206,7 @@ int class_handle_ioctl(unsigned int cmd, unsigned long arg) memcpy(data->ioc_bulk, LUSTRE_VERSION_STRING, strlen(LUSTRE_VERSION_STRING) + 1); - err = obd_ioctl_popdata((void __user *)arg, data, len); - if (err) + if (copy_to_user((void __user *)arg, data, len)) err = -EFAULT; goto out; @@ -225,9 +224,7 @@ int class_handle_ioctl(unsigned int cmd, unsigned long arg) goto out; } - err = obd_ioctl_popdata((void __user *)arg, data, - sizeof(*data)); - if (err) + if (copy_to_user((void __user *)arg, data, sizeof(*data))) err = -EFAULT; goto out; } @@ -263,8 +260,8 @@ int class_handle_ioctl(unsigned int cmd, unsigned long arg) CDEBUG(D_IOCTL, "device name %s, dev %d\n", data->ioc_inlbuf1, dev); - err = obd_ioctl_popdata((void __user *)arg, data, - sizeof(*data)); + + if (copy_to_user((void __user *)arg, data, sizeof(*data))) if (err) err = -EFAULT; goto out; @@ -304,9 +301,9 @@ int class_handle_ioctl(unsigned int cmd, unsigned long arg) (int)index, status, obd->obd_type->typ_name, obd->obd_name, obd->obd_uuid.uuid, atomic_read(&obd->obd_refcount)); - err = obd_ioctl_popdata((void __user *)arg, data, len); - err = 0; + if (copy_to_user((void __user *)arg, data, len)) + err = -EFAULT; goto out; } } @@ -361,8 +358,7 @@ int class_handle_ioctl(unsigned int cmd, unsigned long arg) if (err) goto out; - err = obd_ioctl_popdata((void __user *)arg, data, len); - if (err) + if (copy_to_user((void __user *)arg, data, len)) err = -EFAULT; goto out; } diff --git a/drivers/staging/lustre/lustre/obdclass/linux/linux-module.c b/drivers/staging/lustre/lustre/obdclass/linux/linux-module.c index eb88bd9..3a394d2 100644 --- a/drivers/staging/lustre/lustre/obdclass/linux/linux-module.c +++ b/drivers/staging/lustre/lustre/obdclass/linux/linux-module.c @@ -151,14 +151,6 @@ int obd_ioctl_getdata(char **buf, int *len, void __user *arg) } EXPORT_SYMBOL(obd_ioctl_getdata); -int obd_ioctl_popdata(void __user *arg, void *data, int len) -{ - int err; - - err = copy_to_user(arg, data, len) ? -EFAULT : 0; - return err; -} - /* opening /dev/obd */ static int obd_class_open(struct inode *inode, struct file *file) { -- 1.8.3.1 _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
