block: qemu_aio_get does not return NULL

Initially done with the following semantic patch:

@ rule1 @
expression E;
statement S;
@@
  E = qemu_aio_get (...);
(
- if (E == NULL) { ... }
|
- if (E)
    { <... S ...> }
)

which however missed occurrences in linux-aio.c and posix-aio-compat.c.
Those were done by hand.

The change in vdi_aio_setup's caller was also done by hand.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

1 files changed, 0 insertions, 2 deletions

diff --git a/linux-aio.c b/linux-aio.c
index 1c635ef12..d2fc2e7d0 100644
--- a/linux-aio.c
+++ b/linux-aio.c
@@ -166,8 +166,6 @@ BlockDriverAIOCB *laio_submit(BlockDriverState *bs, void *aio_ctx, int fd,
     off_t offset = sector_num * 512;
 
     laiocb = qemu_aio_get(&laio_pool, bs, cb, opaque);
-    if (!laiocb)
-        return NULL;
     laiocb->nbytes = nb_sectors * 512;
     laiocb->ctx = s;
     laiocb->ret = -EINPROGRESS;