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| author | Akinobu Mita <akinobu.mita@gmail.com> | 2022-09-20 02:24:17 +0900 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-12-31 13:14:03 +0100 |
| commit | 7e8e8cc13625241550f5e523bc1bb81511faecb3 (patch) | |
| tree | 6dcd0eae2c349461e239c4bacd999093a6830c74 /lib | |
| parent | 39b5e6130b732686624ffd60e0ea1c47ca98e915 (diff) | |
| download | linux-stable-7e8e8cc13625241550f5e523bc1bb81511faecb3.tar.gz linux-stable-7e8e8cc13625241550f5e523bc1bb81511faecb3.tar.bz2 linux-stable-7e8e8cc13625241550f5e523bc1bb81511faecb3.zip | |
lib/notifier-error-inject: fix error when writing -errno to debugfs file
[ Upstream commit f883c3edd2c432a2931ec8773c70a570115a50fe ]
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.
Link: https://lkml.kernel.org/r/20220919172418.45257-3-akinobu.mita@gmail.com
Fixes: 488dac0c9237 ("libfs: fix error cast of negative value in simple_attr_write()")
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Reported-by: Zhao Gongyi <zhaogongyi@huawei.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Rafael J. Wysocki <rafael@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Wei Yongjun <weiyongjun1@huawei.com>
Cc: Yicong Yang <yangyicong@hisilicon.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/notifier-error-inject.c | 2 |
1 files changed, 1 insertions, 1 deletions
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, |