[PATCH v2 2/6] efi/runtime-wrappers: handle queue_work() failure with goto exit

[Breno Leitao <leitao@debian.org>]

Convert the queue_work() failure path in __efi_queue_work() to a
goto exit instead of falling through to the wait and the
WARN_ON_ONCE(status == EFI_ABORTED) below it. A failed queue_work()
leaves the status at its initial EFI_ABORTED, so that warning would
fire even though no call ran; it is meant for a completed call that
returned EFI_ABORTED.

No change for the common (successful enqueue) path. This also prepares
__efi_queue_work() for the timeout handling added later.

Signed-off-by: Breno Leitao <leitao@debian.org>
---
 drivers/firmware/efi/runtime-wrappers.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/firmware/efi/runtime-wrappers.c b/drivers/firmware/efi/runtime-wrappers.c
index da8d296216441..ebeec87ed0b0a 100644
--- a/drivers/firmware/efi/runtime-wrappers.c
+++ b/drivers/firmware/efi/runtime-wrappers.c
@@ -338,10 +338,12 @@ static efi_status_t __efi_queue_work(enum efi_rts_ids id,
 	 * queue_work() returns 0 if work was already on queue,
 	 * _ideally_ this should never happen.
 	 */
-	if (queue_work(efi_rts_wq, &efi_rts_work.work))
-		wait_for_completion(&efi_rts_work.efi_rts_comp);
-	else
+	if (!queue_work(efi_rts_wq, &efi_rts_work.work)) {
 		pr_err("Failed to queue work to efi_rts_wq.\n");
+		goto exit;
+	}
+
+	wait_for_completion(&efi_rts_work.efi_rts_comp);
 
 	WARN_ON_ONCE(efi_rts_work.status == EFI_ABORTED);
 exit:

-- 
2.53.0-Meta