linux-user/strace: Use is_error in print_syscall_err

Errors are not all negative numbers: use is_error.

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220602013401.303699-16-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

diff --git a/linux-user/strace.c b/linux-user/strace.c
index 9fa681d..7d88252 100644 (file)
--- a/linux-user/strace.c
+++ b/linux-user/strace.c
@@ -689,7 +689,7 @@ print_syscall_err(abi_long ret)
     const char *errstr;
 
     qemu_log(" = ");
-    if (ret < 0) {
+    if (is_error(ret)) {
         errstr = target_strerror(-ret);
         if (errstr) {
             qemu_log("-1 errno=%d (%s)", (int)-ret, errstr);