[PATCH -next] io_uring: remove set but not used variable 'ret'

[YueHaibing]

Fixes gcc '-Wunused-but-set-variable' warning:

fs/io_uring.c: In function io_ring_submit:
fs/io_uring.c:2279:7: warning: variable ret set but not used 
[-Wunused-but-set-variable]

It's not used since commit f3fafe4103bd ("io_uring: add support for sqe links")

Signed-off-by: YueHaibing <yuehaib...@huawei.com>
---
 fs/io_uring.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/fs/io_uring.c b/fs/io_uring.c
index 8ef9d8d3c88b..e2bbd227ab2a 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -2276,7 +2276,6 @@ static int io_ring_submit(struct io_ring_ctx *ctx, 
unsigned int to_submit)
 
        for (i = 0; i < to_submit; i++) {
                struct sqe_submit s;
-               int ret;
 
                if (!io_get_sqring(ctx, &s))
                        break;
@@ -2292,7 +2291,7 @@ static int io_ring_submit(struct io_ring_ctx *ctx, 
unsigned int to_submit)
                s.needs_fixed_file = false;
                submit++;
 
-               ret = io_submit_sqe(ctx, &s, statep, &link);
+               io_submit_sqe(ctx, &s, statep, &link);
        }
        io_commit_sqring(ctx);
 
-- 
2.17.1