diff options
Diffstat (limited to 'io_uring/kbuf.c')
| -rw-r--r-- | io_uring/kbuf.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/io_uring/kbuf.c b/io_uring/kbuf.c index 268788305b61..72b6af1d2ed3 100644 --- a/io_uring/kbuf.c +++ b/io_uring/kbuf.c @@ -636,8 +636,8 @@ static int io_alloc_pbuf_ring(struct io_ring_ctx *ctx, ibf = io_lookup_buf_free_entry(ctx, ring_size); if (!ibf) { ptr = io_mem_alloc(ring_size); - if (!ptr) - return -ENOMEM; + if (IS_ERR(ptr)) + return PTR_ERR(ptr); /* Allocate and store deferred free entry */ ibf = kmalloc(sizeof(*ibf), GFP_KERNEL_ACCOUNT); @@ -756,6 +756,8 @@ void *io_pbuf_get_address(struct io_ring_ctx *ctx, unsigned long bgid) bl = __io_buffer_get_list(ctx, smp_load_acquire(&ctx->io_bl), bgid); + if (!bl || !bl->is_mmap) + return NULL; /* * Ensure the list is fully setup. Only strictly needed for RCU lookup * via mmap, and in that case only for the array indexed groups. For @@ -763,8 +765,6 @@ void *io_pbuf_get_address(struct io_ring_ctx *ctx, unsigned long bgid) */ if (!smp_load_acquire(&bl->is_ready)) return NULL; - if (!bl || !bl->is_mmap) - return NULL; return bl->buf_ring; } |