if seq_file .next fuction does not change position index,
read after some lseek can generate unexpected output.
https://bugzilla.kernel.org/show_bug.cgi?id=206283
Signed-off-by: Vasily Averin <[email protected]>
---
fs/pstore/inode.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/pstore/inode.c b/fs/pstore/inode.c
index 7fbe8f0..ea8799b 100644
--- a/fs/pstore/inode.c
+++ b/fs/pstore/inode.c
@@ -87,11 +87,11 @@ static void *pstore_ftrace_seq_next(struct seq_file *s, void *v, loff_t *pos)
struct pstore_private *ps = s->private;
struct pstore_ftrace_seq_data *data = v;
+ (*pos)++;
data->off += REC_SIZE;
if (data->off + REC_SIZE > ps->total_size)
return NULL;
- (*pos)++;
return data;
}
--
1.8.3.1