[PATCH v4 02/40] bsd-user: Fix copy direciton in preadv

As written, we copy in the vector and data then don't copy it out, when
instead. Instead, we should copy the data out. pread and read are
already correct.

Reviewed-by: Richard Henderson <[email protected]>
Acked-by: Richard Henderson <[email protected]>
Signed-off-by: Warner Losh <[email protected]>
---
 bsd-user/bsd-file.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/bsd-user/bsd-file.h b/bsd-user/bsd-file.h
index dec59bd80b..7ef9470c4e 100644
--- a/bsd-user/bsd-file.h
+++ b/bsd-user/bsd-file.h
@@ -113,7 +113,7 @@ static abi_long do_bsd_preadv(CPUArchState *env, abi_long arg1,
     abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5, abi_long arg6)
 {
     abi_long ret;
-    struct iovec *vec = lock_iovec(VERIFY_WRITE, arg2, arg3, 1);
+    struct iovec *vec = lock_iovec(VERIFY_WRITE, arg2, arg3, 0);
 
     if (vec != NULL) {
         if (regpairs_aligned(env) != 0) {
@@ -121,7 +121,7 @@ static abi_long do_bsd_preadv(CPUArchState *env, abi_long arg1,
             arg5 = arg6;
         }
         ret = get_errno(safe_preadv(arg1, vec, arg3, target_arg64(arg4, arg5)));
-        unlock_iovec(vec, arg2, arg3, 0);
+        unlock_iovec(vec, arg2, arg3, 1);
     } else {
         ret = -host_to_target_errno(errno);
     }

-- 
2.55.0