misc: genwqe: fix compile warnings

Using the following command will get compile warnings:
make W=1 drivers/misc/genwqe/card_ddcb.o ARCH=x86_64

drivers/misc/genwqe/card_ddcb.c: In function setup_ddcb_queue:
drivers/misc/genwqe/card_ddcb.c:1024:6: warning: variable rc set but not
used [-Wunused-but-set-variable]
drivers/misc/genwqe/card_ddcb.c: In function genwqe_card_thread:
drivers/misc/genwqe/card_ddcb.c:1190:23: warning: variable rc set but
not used [-Wunused-but-set-variable]

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Hongbo Yao <yaohongbo@huawei.com>
Link: https://lore.kernel.org/r/20191205111655.170382-1-yaohongbo@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/misc/genwqe/card_ddcb.c b/drivers/misc/genwqe/card_ddcb.c
index 026c6ca..9051065 100644 (file)
--- a/drivers/misc/genwqe/card_ddcb.c
+++ b/drivers/misc/genwqe/card_ddcb.c
@@ -1084,7 +1084,7 @@ static int setup_ddcb_queue(struct genwqe_dev *cd, struct ddcb_queue *queue)
                                queue->ddcb_daddr);
        queue->ddcb_vaddr = NULL;
        queue->ddcb_daddr = 0ull;
-       return -ENODEV;
+       return rc;
 
 }
 
@@ -1179,7 +1179,7 @@ static irqreturn_t genwqe_vf_isr(int irq, void *dev_id)
  */
 static int genwqe_card_thread(void *data)
 {
-       int should_stop = 0, rc = 0;
+       int should_stop = 0;
        struct genwqe_dev *cd = (struct genwqe_dev *)data;
 
        while (!kthread_should_stop()) {
@@ -1187,12 +1187,12 @@ static int genwqe_card_thread(void *data)
                genwqe_check_ddcb_queue(cd, &cd->queue);
 
                if (GENWQE_POLLING_ENABLED) {
-                       rc = wait_event_interruptible_timeout(
+                       wait_event_interruptible_timeout(
                                cd->queue_waitq,
                                genwqe_ddcbs_in_flight(cd) ||
                                (should_stop = kthread_should_stop()), 1);
                } else {
-                       rc = wait_event_interruptible_timeout(
+                       wait_event_interruptible_timeout(
                                cd->queue_waitq,
                                genwqe_next_ddcb_ready(cd) ||
                                (should_stop = kthread_should_stop()), HZ);