Re: [PATCH 2/3] lib/notifier-error-inject: fix error when writing -errno to debugfs file

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On 19.09.22 19:24, Akinobu Mita wrote:
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@xxxxxxxxxx>
Signed-off-by: Akinobu Mita <akinobu.mita@xxxxxxxxx>
---
  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,

Reviewed-by: David Hildenbrand <david@xxxxxxxxxx>

--
Thanks,

David / dhildenb





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