Merge remote-tracking branch 'remotes/gkurz/tags/for-upstream' into staging

This fixes a bad errno returned to the guest and a trivial coding style nit.

# gpg: Signature made Mon 06 Nov 2017 18:09:24 GMT
# gpg:                using RSA key 0x71D4D5E5822F73D6
# gpg: Good signature from "Greg Kurz <groug@kaod.org>"
# gpg:                 aka "Gregory Kurz <gregory.kurz@free.fr>"
# gpg:                 aka "[jpeg image of size 3330]"
# Primary key fingerprint: B482 8BAF 9431 40CE F2A3  4910 71D4 D5E5 822F 73D6

* remotes/gkurz/tags/for-upstream:
  9pfs: fix v9fs_mark_fids_unreclaim() return value
  9pfs: drop one user of struct V9fsFidState
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>

hw/9pfs/9p.c

@@ -512,7 +512,7 @@ static int coroutine_fn v9fs_mark_fids_unreclaim(V9fsPDU *pdu, V9fsPath *path)
             /* reopen the file/dir if already closed */
             err = v9fs_reopen_fid(pdu, fidp);
             if (err < 0) {
-                return -1;
+                return err;
             }
             /*
              * Go back to head of fid list because

hw/9pfs/9p.h

@@ -117,7 +117,7 @@ static inline char *rpath(FsContext *ctx, const char *path)
 #define P9_IOHDRSZ 24
 
 typedef struct V9fsPDU V9fsPDU;
-struct V9fsState;
+typedef struct V9fsState V9fsState;
 
 typedef struct {
     uint32_t size_le;
@@ -137,7 +137,7 @@ struct V9fsPDU
     uint8_t id;
     uint8_t cancelled;
     CoQueue complete;
-    struct V9fsState *s;
+    V9fsState *s;
     QLIST_ENTRY(V9fsPDU) next;
     uint32_t idx;
 };
@@ -230,7 +230,7 @@ struct V9fsFidState
     V9fsFidState *rclm_lst;
 };
 
-typedef struct V9fsState
+struct V9fsState
 {
     QLIST_HEAD(, V9fsPDU) free_list;
     QLIST_HEAD(, V9fsPDU) active_list;
@@ -251,7 +251,7 @@ typedef struct V9fsState
     Error *migration_blocker;
     V9fsConf fsconf;
     V9fsQID root_qid;
-} V9fsState;
+};
 
 /* 9p2000.L open flags */
 #define P9_DOTL_RDONLY        00000000