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| author | Al Viro <viro@zeniv.linux.org.uk> | 2008-08-12 05:51:22 +0200 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2008-08-25 07:18:06 +0200 |
| commit | 645e68ed4d14272f0b47e2474f90577191bef781 (patch) | |
| tree | 8d147a043237074bee9745cf4da521d37709c444 | |
| parent | [PATCH] ntfs: use d_add_ci (diff) | |
| download | linux-645e68ed4d14272f0b47e2474f90577191bef781.tar.xz linux-645e68ed4d14272f0b47e2474f90577191bef781.zip | |
[PATCH] fix osf_getdirents()
Return value of filldir callback is just "should we stop here"; it's
not a usable channel for passing error values (i.e. ->readdir() will
forget anything except "is it non-zero").
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| -rw-r--r-- | arch/alpha/kernel/osf_sys.c | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c index 6e943135f0e0..8509dad31204 100644 --- a/arch/alpha/kernel/osf_sys.c +++ b/arch/alpha/kernel/osf_sys.c @@ -121,24 +121,29 @@ osf_filldir(void *__buf, const char *name, int namlen, loff_t offset, if (reclen > buf->count) return -EINVAL; d_ino = ino; - if (sizeof(d_ino) < sizeof(ino) && d_ino != ino) + if (sizeof(d_ino) < sizeof(ino) && d_ino != ino) { + buf->error = -EOVERFLOW; return -EOVERFLOW; + } if (buf->basep) { if (put_user(offset, buf->basep)) - return -EFAULT; + goto Efault; buf->basep = NULL; } dirent = buf->dirent; - put_user(d_ino, &dirent->d_ino); - put_user(namlen, &dirent->d_namlen); - put_user(reclen, &dirent->d_reclen); - if (copy_to_user(dirent->d_name, name, namlen) || + if (put_user(d_ino, &dirent->d_ino) || + put_user(namlen, &dirent->d_namlen) || + put_user(reclen, &dirent->d_reclen) || + copy_to_user(dirent->d_name, name, namlen) || put_user(0, dirent->d_name + namlen)) - return -EFAULT; + goto Efault; dirent = (void __user *)dirent + reclen; buf->dirent = dirent; buf->count -= reclen; return 0; +Efault: + buf->error = -EFAULT; + return -EFAULT; } asmlinkage int |