[PULL 03/13] tests/tcg/multiarch/linux-test: Fix error check for shmat

From: Laurent Vivier <laurent@vivier.eu>
To: qemu-devel@nongnu.org
Cc: "Mark Cave-Ayland" <mark.cave-ayland@ilande.co.uk>,
	"Riku Voipio" <riku.voipio@iki.fi>,
	"Richard Henderson" <richard.henderson@linaro.org>,
	"Laurent Vivier" <laurent@vivier.eu>,
	"Philippe Mathieu-Daudé" <philmd@redhat.com>,
	"Alex Bennée" <alex.bennee@linaro.org>,
	"Artyom Tarasenko" <atar4qemu@gmail.com>
Subject: [PULL 03/13] tests/tcg/multiarch/linux-test: Fix error check for shmat
Date: Tue,  5 Nov 2019 19:11:09 +0100	[thread overview]
Message-ID: <20191105181119.26779-4-laurent@vivier.eu> (raw)
In-Reply-To: <20191105181119.26779-1-laurent@vivier.eu>

From: Richard Henderson <richard.henderson@linaro.org>

The error indicator for this syscall is -1, not 0.

Fixes: e374bfa35bfb ("shm tests - disabled clone test")
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20191025113921.9412-3-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
---
 tests/tcg/multiarch/linux-test.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tests/tcg/multiarch/linux-test.c b/tests/tcg/multiarch/linux-test.c
index fa4243fc0426..673d7c8a1c25 100644
--- a/tests/tcg/multiarch/linux-test.c
+++ b/tests/tcg/multiarch/linux-test.c
@@ -503,8 +503,9 @@ static void test_shm(void)
 
     shmid = chk_error(shmget(IPC_PRIVATE, SHM_SIZE, IPC_CREAT | 0777));
     ptr = shmat(shmid, NULL, 0);
-    if (!ptr)
+    if (ptr == (void *)-1) {
         error("shmat");
+    }
 
     memset(ptr, 0, SHM_SIZE);
 
-- 
2.21.0


