staging: dgap: driver.c: removes smatch warning "redundant null check"

This patch removes these smatch warnings from dgap_driver.c:

redundant null check on dgap_config_buf calling kfree()
redundant null check on brd->flipbuf calling kfree()
redundant null check on brd->flipflagbuf calling kfree()

Signed-off-by: Lidza Louina <lidza.louina@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/dgap/dgap_driver.c b/drivers/staging/dgap/dgap_driver.c
index a3fa6a8..4c1515e 100644 (file)
--- a/drivers/staging/dgap/dgap_driver.c
+++ b/drivers/staging/dgap/dgap_driver.c
@@ -416,8 +416,7 @@ void dgap_cleanup_module(void)
                unregister_chrdev(DIGI_DGAP_MAJOR, "dgap");
        }
 
-       if (dgap_config_buf)
-               kfree(dgap_config_buf);
+       kfree(dgap_config_buf);
 
        for (i = 0; i < dgap_NumBoards; ++i) {
                dgap_remove_ports_sysfiles(dgap_Board[i]);
@@ -484,10 +483,8 @@ static void dgap_cleanup_board(struct board_t *brd)
                }
        }
 
-       if (brd->flipbuf)
-               kfree(brd->flipbuf);
-       if (brd->flipflagbuf)
-               kfree(brd->flipflagbuf);
+       kfree(brd->flipbuf);
+       kfree(brd->flipflagbuf);
 
        dgap_Board[brd->boardnum] = NULL;