coccinelle: Remove unnecessary variables for function return value

Use Coccinelle script to replace 'ret = E; return ret' with
'return E'. The script will do the substitution only when the
function return type and variable type are the same.

Manual fixups:

* audio/audio.c: coding style of "read (...)" and "write (...)"
* block/qcow2-cluster.c: wrap line to make it shorter
* block/qcow2-refcount.c: change indentation of wrapped line
* target-tricore/op_helper.c: fix coding style of
  "remainder|quotient"
* target-mips/dsp_helper.c: reverted changes because I don't
  want to argue about checkpatch.pl
* ui/qemu-pixman.c: fix line indentation
* block/rbd.c: restore blank line between declarations and
  statements

Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <1465855078-19435-4-git-send-email-ehabkost@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
[Unused Coccinelle rule name dropped along with a redundant comment;
whitespace touched up in block/qcow2-cluster.c; stale commit message
paragraph deleted]
Signed-off-by: Markus Armbruster <armbru@redhat.com>

1 files changed, 1 insertions, 4 deletions

diff --git a/hw/scsi/megasas.c b/hw/scsi/megasas.c
index a9ffc32682..d1772183cf 100644
--- a/hw/scsi/megasas.c
+++ b/hw/scsi/megasas.c
@@ -410,17 +410,14 @@ static void megasas_encode_lba(uint8_t *cdb, uint64_t lba,
 static uint64_t megasas_fw_time(void)
 {
     struct tm curtime;
-    uint64_t bcd_time;
 
     qemu_get_timedate(&curtime, 0);
-    bcd_time = ((uint64_t)curtime.tm_sec & 0xff) << 48 |
+    return ((uint64_t)curtime.tm_sec & 0xff) << 48 |
         ((uint64_t)curtime.tm_min & 0xff)  << 40 |
         ((uint64_t)curtime.tm_hour & 0xff) << 32 |
         ((uint64_t)curtime.tm_mday & 0xff) << 24 |
         ((uint64_t)curtime.tm_mon & 0xff)  << 16 |
         ((uint64_t)(curtime.tm_year + 1900) & 0xffff);
-
-    return bcd_time;
 }
 
 /*