The `ret` variable has already been assigned before the `switch`
block.

Signed-off-by: Max Kellermann <max.kellermann@ionos.com>
Fixes: e2d46f2ec332 ("netfs: Change the read result collector to only use one work item")
---
 fs/netfs/read_collect.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/fs/netfs/read_collect.c b/fs/netfs/read_collect.c
index 23c75755ad4e..422bfac47817 100644
--- a/fs/netfs/read_collect.c
+++ b/fs/netfs/read_collect.c
@@ -653,7 +653,6 @@ ssize_t netfs_wait_for_read(struct netfs_io_request *rreq)
 		switch (rreq->origin) {
 		case NETFS_DIO_READ:
 		case NETFS_READ_SINGLE:
-			ret = rreq->transferred;
 			break;
 		default:
 			if (rreq->submitted < rreq->len) {
-- 
2.47.2

Max Kellermann <max.kellermann@ionos.com> wrote:

> The `ret` variable has already been assigned before the `switch`
> block.
> 
> Signed-off-by: Max Kellermann <max.kellermann@ionos.com>
> Fixes: e2d46f2ec332 ("netfs: Change the read result collector to only use one work item")

Please hold off on this one.  I want to submit the two patches at the bottom
of here instead:

	https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git/log/?h=netfs-fixes

	netfs: Fix the request's work item to not require a ref
	netfs: Fix wait/wake to be consistent about the waitqueue used

and this code gets moved and commonalised with the wait-for-write functions.

The reason I haven't posted them yet is that there may be an issue with cifs -
and only in Steve's testfarm - though I'm not sure whether it's actually
directly related to the changes here or whether it was masked just by it.

Thanks,
David

Max Kellermann <max.kellermann@ionos.com> writes:

> @@ -653,7 +653,6 @@ ssize_t netfs_wait_for_read(struct netfs_io_request *rreq)
>  		switch (rreq->origin) {
>  		case NETFS_DIO_READ:
>  		case NETFS_READ_SINGLE:
> -			ret = rreq->transferred;
>  			break;
>  		default:
>  			if (rreq->submitted < rreq->len) {

This is wrong.  @ret is expected to have the amount of bytes
successfully read if no error.