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files: Enhance error message

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While being debugging problem I found plain BUG_ON is not enough.

Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
This commit is contained in:
Cyrill Gorcunov 2012-07-28 09:11:12 +04:00 committed by Pavel Emelyanov
parent 33293222ba
commit 26aa295135
1 changed files with 5 additions and 1 deletions
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files.c
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@ -81,7 +81,11 @@ static inline struct file_desc *find_file_desc(FdinfoEntry *fe)
struct fdinfo_list_entry *file_master(struct file_desc *d) struct fdinfo_list_entry *file_master(struct file_desc *d)
{ {
BUG_ON(list_empty(&d->fd_info_head)); if (list_empty(&d->fd_info_head)) {
pr_err("Empty list on file desc id %#x\n", d->id);
BUG_ON(1);
}
return list_first_entry(&d->fd_info_head, return list_first_entry(&d->fd_info_head,
struct fdinfo_list_entry, desc_list); struct fdinfo_list_entry, desc_list);
} }