Revision 2e6e1fde32d7d41cf076c21060c329d3fdbce25c authored by Pavel Begunkov on 05 December 2019, 13:15:45 UTC, committed by Jens Axboe on 05 December 2019, 13:54:51 UTC
In case of an error io_submit_sqe() drops a request and continues without it, even if the request was a part of a link. Not only it doesn't cancel links, but also may execute wrong sequence of actions. Stop consuming sqes, and let the user handle errors. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
1 parent 78076bb
sun50i-de2.c
// SPDX-License-Identifier: GPL-2.0
/*
* Allwinner A64 Display Engine 2.0 Bus Driver
*
* Copyright (C) 2018 Icenowy Zheng <icenowy@aosc.io>
*/
#include <linux/of_platform.h>
#include <linux/platform_device.h>
#include <linux/soc/sunxi/sunxi_sram.h>
static int sun50i_de2_bus_probe(struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
int ret;
ret = sunxi_sram_claim(&pdev->dev);
if (ret) {
dev_err(&pdev->dev, "Error couldn't map SRAM to device\n");
return ret;
}
of_platform_populate(np, NULL, NULL, &pdev->dev);
return 0;
}
static int sun50i_de2_bus_remove(struct platform_device *pdev)
{
sunxi_sram_release(&pdev->dev);
return 0;
}
static const struct of_device_id sun50i_de2_bus_of_match[] = {
{ .compatible = "allwinner,sun50i-a64-de2", },
{ /* sentinel */ }
};
static struct platform_driver sun50i_de2_bus_driver = {
.probe = sun50i_de2_bus_probe,
.remove = sun50i_de2_bus_remove,
.driver = {
.name = "sun50i-de2-bus",
.of_match_table = sun50i_de2_bus_of_match,
},
};
builtin_platform_driver(sun50i_de2_bus_driver);
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