block: dma_bdrv_* does not return NULL

Initially attempted with the following semantic patch:

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

which however did not match anything.

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

1 files changed, 1 insertions, 3 deletions

diff --git a/hw/ide/macio.c b/hw/ide/macio.c
index 40f60f018e..abbc41b59e 100644
--- a/hw/ide/macio.c
+++ b/hw/ide/macio.c
@@ -152,10 +152,8 @@ static void pmac_ide_transfer_cb(void *opaque, int ret)
                                ide_issue_trim, pmac_ide_transfer_cb, s, true);
         break;
     }
-
-    if (!m->aiocb)
-        pmac_ide_transfer_cb(io, -1);
     return;
+
 done:
     if (s->dma_cmd == IDE_DMA_READ || s->dma_cmd == IDE_DMA_WRITE) {
         bdrv_acct_done(s->bs, &s->acct);