From: Akinobu Mita <akinobu.mita@gmail.com>
To: linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-mm@kvack.org, linux-kselftest@vger.kernel.org,
linux-fsdevel@vger.kernel.org, corbet@lwn.net, david@redhat.com,
osalvador@suse.de, shuah@kernel.org,
Zhao Gongyi <zhaogongyi@huawei.com>,
Wei Yongjun <weiyongjun1@huawei.com>,
Yicong Yang <yangyicong@hisilicon.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
"Rafael J. Wysocki" <rafael@kernel.org>,
Alexander Viro <viro@zeniv.linux.org.uk>,
akpm@linux-foundation.org
Cc: Akinobu Mita <akinobu.mita@gmail.com>
Subject: [PATCH 2/3] lib/notifier-error-inject: fix error when writing -errno to debugfs file
Date: Tue, 20 Sep 2022 02:24:17 +0900 [thread overview]
Message-ID: <20220919172418.45257-3-akinobu.mita@gmail.com> (raw)
In-Reply-To: <20220919172418.45257-1-akinobu.mita@gmail.com>
The simple attribute files do not accept a negative value since the
commit 488dac0c9237 ("libfs: fix error cast of negative value in
simple_attr_write()").
This restores the previous behaviour by using newly introduced
DEFINE_SIMPLE_ATTRIBUTE_SIGNED instead of DEFINE_SIMPLE_ATTRIBUTE.
Fixes: 488dac0c9237 ("libfs: fix error cast of negative value in simple_attr_write()")
Reported-by: Zhao Gongyi <zhaogongyi@huawei.com>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
---
lib/notifier-error-inject.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lib/notifier-error-inject.c b/lib/notifier-error-inject.c
index 21016b32d313..2b24ea6c9497 100644
--- a/lib/notifier-error-inject.c
+++ b/lib/notifier-error-inject.c
@@ -15,7 +15,7 @@ static int debugfs_errno_get(void *data, u64 *val)
return 0;
}
-DEFINE_SIMPLE_ATTRIBUTE(fops_errno, debugfs_errno_get, debugfs_errno_set,
+DEFINE_SIMPLE_ATTRIBUTE_SIGNED(fops_errno, debugfs_errno_get, debugfs_errno_set,
"%lld\n");
static struct dentry *debugfs_create_errno(const char *name, umode_t mode,
--
2.34.1
next prev parent reply other threads:[~2022-09-19 17:25 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-19 17:24 [PATCH 0/3] fix error when writing negative value to simple attribute files Akinobu Mita
2022-09-19 17:24 ` [PATCH 1/3] libfs: add DEFINE_SIMPLE_ATTRIBUTE_SIGNED for signed value Akinobu Mita
2022-09-20 8:14 ` David Hildenbrand
2022-09-19 17:24 ` Akinobu Mita [this message]
2022-09-20 8:15 ` [PATCH 2/3] lib/notifier-error-inject: fix error when writing -errno to debugfs file David Hildenbrand
2022-09-19 17:24 ` [PATCH 3/3] debugfs: fix error when writing negative value to atomic_t " Akinobu Mita
2022-09-20 8:19 ` David Hildenbrand
2022-09-20 7:47 ` [PATCH 0/3] fix error when writing negative value to simple attribute files Greg Kroah-Hartman
2022-09-22 8:06 ` Zhao Gongyi
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