xiaoxiang781216 commented on a change in pull request #4121:
URL: https://github.com/apache/incubator-nuttx/pull/4121#discussion_r668408982
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File path: fs/vfs/fs_stat.c
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@@ -120,6 +120,10 @@ static int stat_recursive(FAR const char *path,
ret = inode->u.i_mops->stat(inode, desc.relpath, buf);
}
+ else
+ {
+ ret = -ENOSYS;
Review comment:
If the file system doesn't provide stat implementation, it is wrong to
return OK but with the bad/unitial value in the stat buf. How to interpret the
error code not mention in standard? I think the error code is the
implementation detail, OS can return other suitable error code, unless the
standared specially note the error case and code(e.g. EAGAIN, EINTR...).
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