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| author | Pavel Begunkov <asml.silence@gmail.com> | 2021-04-20 14:03:32 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2021-04-20 21:55:28 +0300 |
| commit | 07db298a1c96bdba2102d60ad51fcecb961177c9 (patch) | |
| tree | c0367db6051b749ce5021ca9b1842aea7b4b5836 /fs/io_uring.c | |
| parent | 3a0a690235923b838390500fd46edc23bed092e0 (diff) | |
| download | linux-07db298a1c96bdba2102d60ad51fcecb961177c9.tar.xz | |
io_uring: safer sq_creds putting
Put sq_creds as a part of io_ring_ctx_free(), it's easy to miss doing it
in io_sq_thread_finish(), especially considering past mistakes related
to ring creation failures.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/3becb1866467a1de82a97345a0a90d7fb8ff875e.1618916549.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'fs/io_uring.c')
| -rw-r--r-- | fs/io_uring.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/io_uring.c b/fs/io_uring.c index 34c1864eee21..e621c9f5729f 100644 --- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -7229,8 +7229,6 @@ static void io_sq_thread_finish(struct io_ring_ctx *ctx) io_put_sq_data(sqd); ctx->sq_data = NULL; - if (ctx->sq_creds) - put_cred(ctx->sq_creds); } } @@ -8425,6 +8423,8 @@ static void io_ring_ctx_free(struct io_ring_ctx *ctx) mutex_unlock(&ctx->uring_lock); io_eventfd_unregister(ctx); io_destroy_buffers(ctx); + if (ctx->sq_creds) + put_cred(ctx->sq_creds); /* there are no registered resources left, nobody uses it */ if (ctx->rsrc_node) |