When unregister_blkdev() has failed, something wrong happened.
This patch adds WARN_ON to notify such badness.
Cc: Jens Axboe <[email protected]>
Signed-off-by: Akinobu Mita <[email protected]>
---
block/genhd.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
Index: 2.6-mm/block/genhd.c
===================================================================
--- 2.6-mm.orig/block/genhd.c
+++ 2.6-mm/block/genhd.c
@@ -120,9 +120,10 @@ int unregister_blkdev(unsigned int major
for (n = &major_names[index]; *n; n = &(*n)->next)
if ((*n)->major == major)
break;
- if (!*n || strcmp((*n)->name, name))
+ if (!*n || strcmp((*n)->name, name)) {
+ WARN_ON(1);
ret = -EINVAL;
- else {
+ } else {
p = *n;
*n = p->next;
}
-
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