From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Shuah Khan <skhan@linuxfoundation.org>,
Paolo Bonzini <pbonzini@redhat.com>,
Sasha Levin <sashal@kernel.org>,
shuah@kernel.org, kvm@vger.kernel.org,
linux-kselftest@vger.kernel.org
Subject: [PATCH AUTOSEL 5.14 24/40] selftests:kvm: fix get_warnings_count() ignoring fscanf() return warn
Date: Tue, 28 Sep 2021 01:55:08 -0400 [thread overview]
Message-ID: <20210928055524.172051-24-sashal@kernel.org> (raw)
In-Reply-To: <20210928055524.172051-1-sashal@kernel.org>
From: Shuah Khan <skhan@linuxfoundation.org>
[ Upstream commit 39a71f712d8a13728febd8f3cb3f6db7e1fa7221 ]
Fix get_warnings_count() to check fscanf() return value to get rid
of the following warning:
x86_64/mmio_warning_test.c: In function ‘get_warnings_count’:
x86_64/mmio_warning_test.c:85:2: warning: ignoring return value of ‘fscanf’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
85 | fscanf(f, "%d", &warnings);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
tools/testing/selftests/kvm/x86_64/mmio_warning_test.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/tools/testing/selftests/kvm/x86_64/mmio_warning_test.c b/tools/testing/selftests/kvm/x86_64/mmio_warning_test.c
index e6480fd5c4bd..8039e1eff938 100644
--- a/tools/testing/selftests/kvm/x86_64/mmio_warning_test.c
+++ b/tools/testing/selftests/kvm/x86_64/mmio_warning_test.c
@@ -82,7 +82,8 @@ int get_warnings_count(void)
FILE *f;
f = popen("dmesg | grep \"WARNING:\" | wc -l", "r");
- fscanf(f, "%d", &warnings);
+ if (fscanf(f, "%d", &warnings) < 1)
+ warnings = 0;
fclose(f);
return warnings;
--
2.33.0
next prev parent reply other threads:[~2021-09-28 5:57 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-28 5:54 [PATCH AUTOSEL 5.14 01/40] spi: rockchip: handle zero length transfers without timing out Sasha Levin
2021-09-28 5:54 ` [PATCH AUTOSEL 5.14 02/40] afs: Add missing vnode validation checks Sasha Levin
2021-09-28 5:54 ` [PATCH AUTOSEL 5.14 03/40] platform/x86: touchscreen_dmi: Add info for the Chuwi HiBook (CWI514) tablet Sasha Levin
2021-09-28 5:54 ` [PATCH AUTOSEL 5.14 04/40] platform/x86: touchscreen_dmi: Update info for the Chuwi Hi10 Plus (CWI527) tablet Sasha Levin
2021-09-28 5:54 ` [PATCH AUTOSEL 5.14 05/40] nfsd: back channel stuck in SEQ4_STATUS_CB_PATH_DOWN Sasha Levin
2021-09-28 5:54 ` [PATCH AUTOSEL 5.14 06/40] btrfs: replace BUG_ON() in btrfs_csum_one_bio() with proper error handling Sasha Levin
2021-09-28 5:54 ` [PATCH AUTOSEL 5.14 07/40] btrfs: fix mount failure due to past and transient device flush error Sasha Levin
2021-09-28 5:54 ` [PATCH AUTOSEL 5.14 08/40] net: mdio: introduce a shutdown method to mdio device drivers Sasha Levin
2021-09-28 5:54 ` [PATCH AUTOSEL 5.14 09/40] xen-netback: correct success/error reporting for the SKB-with-fraglist case Sasha Levin
2021-09-28 5:54 ` [PATCH AUTOSEL 5.14 10/40] sparc64: fix pci_iounmap() when CONFIG_PCI is not set Sasha Levin
2021-09-28 5:54 ` [PATCH AUTOSEL 5.14 11/40] platform/x86/intel: hid: Add DMI switches allow list Sasha Levin
2021-09-28 5:54 ` [PATCH AUTOSEL 5.14 12/40] platform/x86: gigabyte-wmi: add support for B550I Aorus Pro AX Sasha Levin
2021-09-28 5:54 ` [PATCH AUTOSEL 5.14 13/40] ext2: fix sleeping in atomic bugs on error Sasha Levin
2021-09-28 5:54 ` [PATCH AUTOSEL 5.14 14/40] drm/amdkfd: handle svm migrate init error Sasha Levin
2021-09-28 5:54 ` [PATCH AUTOSEL 5.14 15/40] drm/amdkfd: fix svm_migrate_fini warning Sasha Levin
2021-09-28 5:55 ` [PATCH AUTOSEL 5.14 16/40] scsi: sd: Free scsi_disk device via put_device() Sasha Levin
2021-09-28 5:55 ` [PATCH AUTOSEL 5.14 17/40] scsi: elx: efct: Do not hold lock while calling fc_vport_terminate() Sasha Levin
2021-09-28 5:55 ` [PATCH AUTOSEL 5.14 18/40] usb: testusb: Fix for showing the connection speed Sasha Levin
2021-09-28 5:55 ` [PATCH AUTOSEL 5.14 19/40] usb: dwc2: check return value after calling platform_get_resource() Sasha Levin
2021-09-28 5:55 ` [PATCH AUTOSEL 5.14 20/40] habanalabs/gaudi: use direct MSI in single mode Sasha Levin
2021-09-28 5:55 ` [PATCH AUTOSEL 5.14 21/40] habanalabs: fail collective wait when not supported Sasha Levin
2021-09-28 5:55 ` [PATCH AUTOSEL 5.14 22/40] habanalabs/gaudi: fix LBW RR configuration Sasha Levin
2021-09-28 5:55 ` [PATCH AUTOSEL 5.14 23/40] selftests: be sure to make khdr before other targets Sasha Levin
2021-09-28 5:55 ` Sasha Levin [this message]
2021-09-28 5:55 ` [PATCH AUTOSEL 5.14 25/40] selftests:kvm: fix get_trans_hugepagesz() ignoring fscanf() return warn Sasha Levin
2021-09-28 5:55 ` [PATCH AUTOSEL 5.14 26/40] selftests: kvm: move get_run_delay() into lib/test_util Sasha Levin
2021-09-28 5:55 ` [PATCH AUTOSEL 5.14 27/40] selftests: kvm: fix get_run_delay() ignoring fscanf() return warn Sasha Levin
2021-09-28 5:55 ` [PATCH AUTOSEL 5.14 28/40] Xen/gntdev: don't ignore kernel unmapping error Sasha Levin
2021-09-28 5:55 ` [PATCH AUTOSEL 5.14 29/40] swiotlb-xen: ensure to issue well-formed XENMEM_exchange requests Sasha Levin
2021-09-28 5:55 ` [PATCH AUTOSEL 5.14 30/40] nvme-fc: update hardware queues before using them Sasha Levin
2021-09-28 5:55 ` [PATCH AUTOSEL 5.14 31/40] nvme-fc: avoid race between time out and tear down Sasha Levin
2021-09-28 5:55 ` [PATCH AUTOSEL 5.14 32/40] thermal/drivers/tsens: Fix wrong check for tzd in irq handlers Sasha Levin
2021-09-28 5:55 ` [PATCH AUTOSEL 5.14 33/40] scsi: ses: Retry failed Send/Receive Diagnostic commands Sasha Levin
2021-09-28 5:55 ` [PATCH AUTOSEL 5.14 34/40] irqchip/gic: Work around broken Renesas integration Sasha Levin
2021-09-28 5:55 ` [PATCH AUTOSEL 5.14 35/40] smb3: correct smb3 ACL security descriptor Sasha Levin
2021-09-28 5:55 ` [PATCH AUTOSEL 5.14 36/40] x86/insn, tools/x86: Fix undefined behavior due to potential unaligned accesses Sasha Levin
2021-09-28 5:55 ` [PATCH AUTOSEL 5.14 37/40] io_uring: allow conditional reschedule for intensive iterators Sasha Levin
2021-09-28 5:55 ` [PATCH AUTOSEL 5.14 38/40] block: don't call rq_qos_ops->done_bio if the bio isn't tracked Sasha Levin
2021-09-28 5:55 ` [PATCH AUTOSEL 5.14 39/40] tools/vm/page-types: remove dependency on opt_file for idle page tracking Sasha Levin
2021-09-28 5:55 ` [PATCH AUTOSEL 5.14 40/40] kasan: always respect CONFIG_KASAN_STACK Sasha Levin
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