compat: Handle COMPAT_USE_64BIT_TIME in the lp driver

Enable the lp driver to be used with a compat ABI with 64-bit time.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Greg Kroah-Hartman <greg@kroah.com>

1 files changed, 1 insertions, 4 deletions

diff --git a/drivers/char/lp.c b/drivers/char/lp.c
index f43485607063..a27097173b3a 100644
--- a/drivers/char/lp.c
+++ b/drivers/char/lp.c
@@ -706,16 +706,13 @@ static long lp_compat_ioctl(struct file *file, unsigned int cmd,
 {
         unsigned int minor;
         struct timeval par_timeout;
-        struct compat_timeval __user *tc;
         int ret;
 
         minor = iminor(file->f_path.dentry->d_inode);
         mutex_lock(&lp_mutex);
         switch (cmd) {
         case LPSETTIMEOUT:
-                tc = compat_ptr(arg);
-                if (get_user(par_timeout.tv_sec, &tc->tv_sec) ||
-                    get_user(par_timeout.tv_usec, &tc->tv_usec)) {
+                if (compat_get_timeval(&par_timeout, compat_ptr(arg))) {
                         ret = -EFAULT;
                         break;
                 }