From: Liang Zhen <liang.zhen@xxxxxxxxx> This is apart of the cleanup of libcfs_ioctl* code. In this part we turn libcfs_ioctl_handle into libcfs_ioctl since libcfs_ioctl is now a skeleton function. Signed-off-by: Liang Zhen <liang.zhen@xxxxxxxxx> Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5435 Reviewed-on: http://review.whamcloud.com/11313 Reviewed-by: Bobi Jam <bobijam@xxxxxxxxx> Reviewed-by: Johann Lombardi <johann.lombardi@xxxxxxxxx> Reviewed-by: Oleg Drokin <oleg.drokin@xxxxxxxxx> --- drivers/staging/lustre/lnet/libcfs/module.c | 37 +++++++++++---------------- 1 files changed, 15 insertions(+), 22 deletions(-) diff --git a/drivers/staging/lustre/lnet/libcfs/module.c b/drivers/staging/lustre/lnet/libcfs/module.c index 5a20e53..8beb954 100644 --- a/drivers/staging/lustre/lnet/libcfs/module.c +++ b/drivers/staging/lustre/lnet/libcfs/module.c @@ -112,11 +112,17 @@ int libcfs_deregister_ioctl(struct libcfs_ioctl_handler *hand) } EXPORT_SYMBOL(libcfs_deregister_ioctl); -static int libcfs_ioctl_handle(struct cfs_psdev_file *pfile, unsigned long cmd, - void __user *arg, struct libcfs_ioctl_hdr *hdr) +static int libcfs_ioctl(struct cfs_psdev_file *pfile, unsigned long cmd, + void __user *arg) { struct libcfs_ioctl_data *data = NULL; - int err = 0; + struct libcfs_ioctl_hdr *hdr; + int err; + + /* 'cmd' and permissions get checked in our arch-specific caller */ + err = libcfs_ioctl_getdata(&hdr, arg); + if (err) + return err; /* * The libcfs_ioctl_data_adjust() function performs adjustment @@ -128,7 +134,7 @@ static int libcfs_ioctl_handle(struct cfs_psdev_file *pfile, unsigned long cmd, data = container_of(hdr, struct libcfs_ioctl_data, ioc_hdr); err = libcfs_ioctl_data_adjust(data); if (err) - return err; + goto out; } switch (cmd) { @@ -141,8 +147,10 @@ static int libcfs_ioctl_handle(struct cfs_psdev_file *pfile, unsigned long cmd, */ case IOC_LIBCFS_MARK_DEBUG: if (!data->ioc_inlbuf1 || - data->ioc_inlbuf1[data->ioc_inllen1 - 1] != '\0') - return -EINVAL; + data->ioc_inlbuf1[data->ioc_inllen1 - 1] != '\0') { + err = -EINVAL; + goto out; + } libcfs_debug_mark_buffer(data->ioc_inlbuf1); break; @@ -163,22 +171,7 @@ static int libcfs_ioctl_handle(struct cfs_psdev_file *pfile, unsigned long cmd, up_read(&ioctl_list_sem); break; } } - - return err; -} - -static int libcfs_ioctl(struct cfs_psdev_file *pfile, unsigned long cmd, - void __user *arg) -{ - struct libcfs_ioctl_hdr *hdr; - int err = 0; - - /* 'cmd' and permissions get checked in our arch-specific caller */ - err = libcfs_ioctl_getdata(&hdr, arg); - if (err) - return err; - - err = libcfs_ioctl_handle(pfile, cmd, arg, hdr); +out: LIBCFS_FREE(hdr, hdr->ioc_len); return err; } -- 1.7.1 _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
