drivers/misc: ti-st: Remove unneeded variable in st_tty_open

st_tty_open do not need local variable to store different value,
Hence just remove it.

Signed-off-by: zhong jiang <zhongjiang@huawei.com>
Link: https://lore.kernel.org/r/1568307147-43468-1-git-send-email-zhongjiang@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/misc/ti-st/st_core.c b/drivers/misc/ti-st/st_core.c
index 7d9e23aa0b926dee1f53a3daad16a29f2d64f19f..2ae9948a91e16c7a0b5cfcaf62e7c20844740855 100644 (file)
--- a/drivers/misc/ti-st/st_core.c
+++ b/drivers/misc/ti-st/st_core.c
@@ -708,7 +708,6 @@ EXPORT_SYMBOL_GPL(st_unregister);
  */
 static int st_tty_open(struct tty_struct *tty)
 {
-       int err = 0;
        struct st_data_s *st_gdata;
        pr_info("%s ", __func__);
 
@@ -731,7 +730,8 @@ static int st_tty_open(struct tty_struct *tty)
         */
        st_kim_complete(st_gdata->kim_data);
        pr_debug("done %s", __func__);
-       return err;
+
+       return 0;
 }
 
 static void st_tty_close(struct tty_struct *tty)