From: John L. Hammond <john.hamm...@intel.com> Lets just use copy_to_user() directly instead of having a wrapper function.
Signed-off-by: John L. Hammond <john.hamm...@intel.com> Signed-off-by: James Simmons <uja.o...@gmail.com> Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6245 Reviewed-on: http://review.whamcloud.com/14180 Reviewed-by: Dmitry Eremin <dmitry.ere...@intel.com> Reviewed-by: frank zago <fz...@cray.com> Reviewed-by: James Simmons <uja.o...@yahoo.com> Reviewed-by: Oleg Drokin <oleg.dro...@intel.com> --- .../lustre/include/linux/libcfs/libcfs_ioctl.h | 1 - .../lustre/lnet/libcfs/linux/linux-module.c | 7 ------- drivers/staging/lustre/lnet/libcfs/module.c | 7 ++++--- 3 files changed, 4 insertions(+), 11 deletions(-) diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h index d167d2e..45d1165 100644 --- a/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h +++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h @@ -214,7 +214,6 @@ static inline bool libcfs_ioctl_is_invalid(struct libcfs_ioctl_data *data) int libcfs_ioctl_getdata(struct libcfs_ioctl_hdr **hdr_pp, const struct libcfs_ioctl_hdr __user *uparam); -int libcfs_ioctl_popdata(void __user *arg, void *buf, int size); int libcfs_ioctl_data_adjust(struct libcfs_ioctl_data *data); #endif /* __LIBCFS_IOCTL_H__ */ diff --git a/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c b/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c index ae05895..890a458 100644 --- a/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c +++ b/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c @@ -95,13 +95,6 @@ int libcfs_ioctl_getdata(struct libcfs_ioctl_hdr **hdr_pp, return err; } -int libcfs_ioctl_popdata(void __user *arg, void *data, int size) -{ - if (copy_to_user(arg, data, size)) - return -EFAULT; - return 0; -} - static int libcfs_psdev_open(struct inode *inode, struct file *file) { diff --git a/drivers/staging/lustre/lnet/libcfs/module.c b/drivers/staging/lustre/lnet/libcfs/module.c index 839145e..74b9236 100644 --- a/drivers/staging/lustre/lnet/libcfs/module.c +++ b/drivers/staging/lustre/lnet/libcfs/module.c @@ -168,9 +168,10 @@ static int libcfs_ioctl(struct cfs_psdev_file *pfile, unsigned long cmd, if (err == -EINVAL) continue; - if (!err) - err = libcfs_ioctl_popdata(uparam, hdr, - hdr->ioc_len); + if (!err) { + if (copy_to_user(uparam, hdr, hdr->ioc_len)) + err = -EFAULT; + } break; } up_read(&ioctl_list_sem); -- 1.7.1 _______________________________________________ devel mailing list de...@linuxdriverproject.org http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
