commit 0e5fc994d24af4f4f9a1368bf9c2e730c120c549
author Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Tue Jan 28 17:08:24 2014 +0200
committer Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Sun Feb 02 22:08:41 2014 +0530
tree 5adb446bb5a64d7af440c01247725a8be299ba9b
parent 2f61120c10da9128357510debc8e66880cd2bfdc

hw/9pfs: fix error handing in local_ioc_getversion()

v9fs_co_st_gen() expects to see error code in errno, not in return code.

Let's fix this.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>

hw/9pfs/virtio-9p-local.c

diff --git a/hw/9pfs/virtio-9p-local.c b/hw/9pfs/virtio-9p-local.c
index fc93e9e..9be8854 100644
--- a/hw/9pfs/virtio-9p-local.c
+++ b/hw/9pfs/virtio-9p-local.c
@@ -1068,8 +1068,8 @@
 static int local_ioc_getversion(FsContext *ctx, V9fsPath *path,
                                 mode_t st_mode, uint64_t *st_gen)
 {
-    int err;
 #ifdef FS_IOC_GETVERSION
+    int err;
     V9fsFidOpenState fid_open;
 
     /*
@@ -1085,10 +1085,11 @@
     }
     err = ioctl(fid_open.fd, FS_IOC_GETVERSION, st_gen);
     local_close(ctx, &fid_open);
-#else
-    err = -ENOTTY;
-#endif
     return err;
+#else
+    errno = ENOTTY;
+    return -1;
+#endif
 }
 
 static int local_init(FsContext *ctx)