[PATCH v2] linux-user: Fix SO_ERROR return code of getsockopt()

[Helge Deller <deller@gmx.de>]

Add translation for the host error return code of:
    getsockopt(19, SOL_SOCKET, SO_ERROR, [ECONNREFUSED], [4]) = 0

This fixes the testsuite of the cockpit debian package with a
hppa-linux guest on a x86-64 host.

Signed-off-by: Helge Deller <deller@gmx.de>
---
v2: Fix indenting to make checkscript.sh happy


diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index dac0cfe6c4..06e8612675 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -2809,8 +2809,13 @@ get_timeout:
         ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
         if (ret < 0)
             return ret;
-        if (optname == SO_TYPE) {
+        switch (optname) {
+        case SO_TYPE:
             val = host_to_target_sock_type(val);
+            break;
+        case SO_ERROR:
+            val = host_to_target_errno(val);
+            break;
         }
         if (len > lv)
             len = lv;