linux-user: Do not special-case NULL for PR_GET_PDEATHSIG

The kernel does not special-case arg2 != NULL, so
neither should we.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20220106225738.103012-2-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index ca6e0b8fb0a1f7ec30b2bf55243aae42c656601e..eff107b8bcfd11cfa887297e205161aa6a3aff21 100644 (file)
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -6444,7 +6444,7 @@ static abi_long do_prctl(CPUArchState *env, abi_long option, abi_long arg2,
             int deathsig;
             ret = get_errno(prctl(PR_GET_PDEATHSIG, &deathsig,
                                   arg3, arg4, arg5));
-            if (!is_error(ret) && arg2 && put_user_s32(deathsig, arg2)) {
+            if (!is_error(ret) && put_user_s32(deathsig, arg2)) {
                 return -TARGET_EFAULT;
             }
             return ret;