[PATCH -next] io_uring: Remove redundant NULL check

[Li Heng]

Fix below warnings reported by coccicheck:
./fs/io_uring.c:1544:2-7: WARNING: NULL check before some freeing functions is 
not needed.
./fs/io_uring.c:3095:2-7: WARNING: NULL check before some freeing functions is 
not needed.
./fs/io_uring.c:3195:2-7: WARNING: NULL check before some freeing functions is 
not needed.

Signed-off-by: Li Heng <lihen...@huawei.com>
---
 fs/io_uring.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/fs/io_uring.c b/fs/io_uring.c
index 6587935..71ac3f7 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -1540,8 +1540,7 @@ static void io_dismantle_req(struct io_kiocb *req)
 {
        io_clean_op(req);
 
-       if (req->io)
-               kfree(req->io);
+       kfree(req->io);
        if (req->file)
                io_put_file(req, req->file, (req->flags & REQ_F_FIXED_FILE));
        io_req_clean_work(req);
@@ -3091,8 +3090,7 @@ static int io_read(struct io_kiocb *req, bool 
force_nonblock,
                }
        }
 out_free:
-       if (iovec)
-               kfree(iovec);
+       kfree(iovec);
        return ret;
 }
 
@@ -3191,8 +3189,7 @@ static int io_write(struct io_kiocb *req, bool 
force_nonblock,
                }
        }
 out_free:
-       if (iovec)
-               kfree(iovec);
+       kfree(iovec);
        return ret;
 }
 
-- 
2.7.4