linux-kernel - [PATCH 4.19 217/220] tools: PCI: Fix broken pcitest compilation

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Message-Id: <20191122100929.234765315@linuxfoundation.org>
Date:   Fri, 22 Nov 2019 11:29:42 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Alan Mikhak <alan.mikhak@...ive.com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.19 217/220] tools: PCI: Fix broken pcitest compilation

From: Alan Mikhak <alan.mikhak@...ive.com>

[ Upstream commit 8a5e0af240e07dd3d4897eb8ff52aab757da7fab ]

pcitest is currently broken due to the following compiler error
and related warning. Fix by changing the run_test() function
signature to return an integer result.

pcitest.c: In function run_test:
pcitest.c:143:9: warning: return with a value, in function
returning void
  return (ret < 0) ? ret : 1 - ret; /* return 0 if test succeeded */

pcitest.c: In function main:
pcitest.c:232:9: error: void value not ignored as it ought to be
  return run_test(test);

Fixes: fef31ecaaf2c ("tools: PCI: Fix compilation warnings")
Signed-off-by: Alan Mikhak <alan.mikhak@...ive.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@....com>
Reviewed-by: Paul Walmsley <paul.walmsley@...ive.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 tools/pci/pcitest.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/tools/pci/pcitest.c b/tools/pci/pcitest.c
index ec4d51f3308b8..4c5be77c211f0 100644
--- a/tools/pci/pcitest.c
+++ b/tools/pci/pcitest.c
@@ -47,15 +47,15 @@ struct pci_test {
 	unsigned long	size;
 };
 
-static void run_test(struct pci_test *test)
+static int run_test(struct pci_test *test)
 {
-	long ret;
+	int ret = -EINVAL;
 	int fd;
 
 	fd = open(test->device, O_RDWR);
 	if (fd < 0) {
 		perror("can't open PCI Endpoint Test device");
-		return;
+		return -ENODEV;
 	}
 
 	if (test->barnum >= 0 && test->barnum <= 5) {
-- 
2.20.1