[PATCH RESEND] watch_queue: fix IOC_WATCH_QUEUE_SET_SIZE alloc error paths

[David Disseldorp <ddiss@xxxxxxx>]

>From code inspection, the watch_queue_set_size() allocation error paths
return the ret value set via the prior pipe_resize_ring() call, which
will always be zero.

Fixes: c73be61cede58 ("pipe: Add general notification queue support")
Signed-off-by: David Disseldorp <ddiss@xxxxxxx>
---
 kernel/watch_queue.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/watch_queue.c b/kernel/watch_queue.c
index 230038d4f908..a89a65954ce1 100644
--- a/kernel/watch_queue.c
+++ b/kernel/watch_queue.c
@@ -248,6 +248,7 @@ long watch_queue_set_size(struct pipe_inode_info *pipe, unsigned int nr_notes)
 	if (ret < 0)
 		goto error;
 
+	ret = -ENOMEM;
 	pages = kcalloc(sizeof(struct page *), nr_pages, GFP_KERNEL);
 	if (!pages)
 		goto error;
-- 
2.35.3