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authorVincent Whitchurch2021-12-20 14:06:56 +0100
committerBartosz Golaszewski2021-12-21 16:22:58 +0100
commit3e4d9a485029aa9e172dab5420abe775fd86f8e8 (patch)
tree259112bb4f131f59de2dd1ec1216bd5bddf2239b
parent9a5875f14b0e3a13ae314883f1bb72b7f31fac07 (diff)
gpio: virtio: remove timeout
The driver imposes an arbitrary one second timeout on virtio requests, but the specification doesn't prevent the virtio device from taking longer to process requests, so remove this timeout to support all systems and device implementations. Fixes: 3a29355a22c0275fe86 ("gpio: Add virtio-gpio driver") Signed-off-by: Vincent Whitchurch <vincent.whitchurch@axis.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
-rw-r--r--drivers/gpio/gpio-virtio.c6
1 files changed, 1 insertions, 5 deletions
diff --git a/drivers/gpio/gpio-virtio.c b/drivers/gpio/gpio-virtio.c
index 84f96b78f32a..9f4941bc5760 100644
--- a/drivers/gpio/gpio-virtio.c
+++ b/drivers/gpio/gpio-virtio.c
@@ -100,11 +100,7 @@ static int _virtio_gpio_req(struct virtio_gpio *vgpio, u16 type, u16 gpio,
virtqueue_kick(vgpio->request_vq);
mutex_unlock(&vgpio->lock);
- if (!wait_for_completion_timeout(&line->completion, HZ)) {
- dev_err(dev, "GPIO operation timed out\n");
- ret = -ETIMEDOUT;
- goto out;
- }
+ wait_for_completion(&line->completion);
if (unlikely(res->status != VIRTIO_GPIO_STATUS_OK)) {
dev_err(dev, "GPIO request failed: %d\n", gpio);