cleanup: Tweak and re-run return_directly.cocci

Tweak the semantic patch to drop redundant parenthesis around the
return expression.

Coccinelle drops a comment in hw/rdma/vmw/pvrdma_cmd.c; restored
manually.

Coccinelle messes up vmdk_co_create(), not sure why.  Change dropped,
will be done manually in the next commit.

Line breaks in target/avr/cpu.h and hw/rdma/vmw/pvrdma_cmd.c tidied up
manually.

Whitespace in tools/virtiofsd/fuse_lowlevel.c tidied up manually.

checkpatch.pl complains "return of an errno should typically be -ve"
two times for hw/9pfs/9p-synth.c.  Preexisting, the patch merely makes
it visible to checkpatch.pl.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20221122134917.1217307-2-armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Acked-by: Dr. David Alan Gilbert <dgilbert@redhat.com>

2 files changed, 4 insertions, 16 deletions

diff --git a/softmmu/memory.c b/softmmu/memory.c
index bc0be3f..e05332d 100644
--- a/softmmu/memory.c
+++ b/softmmu/memory.c
@@ -2372,20 +2372,15 @@ void memory_region_reset_dirty(MemoryRegion *mr, hwaddr addr,
 
 int memory_region_get_fd(MemoryRegion *mr)
 {
-    int fd;
-
     RCU_READ_LOCK_GUARD();
     while (mr->alias) {
         mr = mr->alias;
     }
-    fd = mr->ram_block->fd;
-
-    return fd;
+    return mr->ram_block->fd;
 }
 
 void *memory_region_get_ram_ptr(MemoryRegion *mr)
 {
-    void *ptr;
     uint64_t offset = 0;
 
     RCU_READ_LOCK_GUARD();
@@ -2394,9 +2389,7 @@ void *memory_region_get_ram_ptr(MemoryRegion *mr)
         mr = mr->alias;
     }
     assert(mr->ram_block);
-    ptr = qemu_map_ram_ptr(mr->ram_block, offset);
-
-    return ptr;
+    return qemu_map_ram_ptr(mr->ram_block, offset);
 }
 
 MemoryRegion *memory_region_from_host(void *ptr, ram_addr_t *offset)
diff --git a/softmmu/physmem.c b/softmmu/physmem.c
index 1b606a3..edec095 100644
--- a/softmmu/physmem.c
+++ b/softmmu/physmem.c
@@ -3236,7 +3236,6 @@ void *address_space_map(AddressSpace *as,
     hwaddr len = *plen;
     hwaddr l, xlat;
     MemoryRegion *mr;
-    void *ptr;
     FlatView *fv;
 
     if (len == 0) {
@@ -3275,9 +3274,7 @@ void *address_space_map(AddressSpace *as,
     *plen = flatview_extend_translation(fv, addr, len, mr, xlat,
                                         l, is_write, attrs);
     fuzz_dma_read_cb(addr, *plen, mr);
-    ptr = qemu_ram_ptr_length(mr->ram_block, xlat, plen, true);
-
-    return ptr;
+    return qemu_ram_ptr_length(mr->ram_block, xlat, plen, true);
 }
 
 /* Unmaps a memory region previously mapped by address_space_map().
@@ -3545,15 +3542,13 @@ bool cpu_physical_memory_is_io(hwaddr phys_addr)
 {
     MemoryRegion*mr;
     hwaddr l = 1;
-    bool res;
 
     RCU_READ_LOCK_GUARD();
     mr = address_space_translate(&address_space_memory,
                                  phys_addr, &phys_addr, &l, false,
                                  MEMTXATTRS_UNSPECIFIED);
 
-    res = !(memory_region_is_ram(mr) || memory_region_is_romd(mr));
-    return res;
+    return !(memory_region_is_ram(mr) || memory_region_is_romd(mr));
 }
 
 int qemu_ram_foreach_block(RAMBlockIterFunc func, void *opaque)