修改led为gpio

hc

2024-10-12 a5969cabbb4660eab42b6ef0412cbbd1200cf14d

 kernel/drivers/i2c/busses/i2c-tiny-usb.c
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@@ -1,13 +1,9 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * driver for the i2c-tiny-usb adapter - 1.0
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  * http://www.harbaum.org/till/i2c_tiny_usb
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  *
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  * Copyright (C) 2006-2007 Till Harbaum (Till@Harbaum.org)
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- *
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- * This program is free software; you can redistribute it and/or
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- * modify it under the terms of the GNU General Public License as
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- * published by the Free Software Foundation, version 2.
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- *
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  */
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8
 
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 #include <linux/kernel.h>
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@@ -88,7 +84,7 @@
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 				     pmsg->buf, pmsg->len) != pmsg->len) {
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 				dev_err(&adapter->dev,
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 					"failure reading data\n");
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-				ret = -EREMOTEIO;
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+				ret = -EIO;
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 				goto out;
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 			}
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 		} else {
..
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@@ -98,7 +94,7 @@
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 				      pmsg->buf, pmsg->len) != pmsg->len) {
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 				dev_err(&adapter->dev,
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 					"failure writing data\n");
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-				ret = -EREMOTEIO;
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+				ret = -EIO;
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 				goto out;
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 			}
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 		}
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@@ -106,13 +102,13 @@
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 		/* read status */
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 		if (usb_read(adapter, CMD_GET_STATUS, 0, 0, pstatus, 1) != 1) {
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 			dev_err(&adapter->dev, "failure reading status\n");
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-			ret = -EREMOTEIO;
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+			ret = -EIO;
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 			goto out;
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 		}
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 		dev_dbg(&adapter->dev, "  status = %d\n", *pstatus);
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 		if (*pstatus == STATUS_ADDRESS_NAK) {
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-			ret = -EREMOTEIO;
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+			ret = -ENXIO;
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 			goto out;
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 		}
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 	}
..
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@@ -230,10 +226,8 @@
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 	/* allocate memory for our device state and initialize it */
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 	dev = kzalloc(sizeof(*dev), GFP_KERNEL);
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-	if (dev == NULL) {
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-		dev_err(&interface->dev, "Out of memory\n");
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+	if (!dev)
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 		goto error;
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-	}
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 	dev->usb_dev = usb_get_dev(interface_to_usbdev(interface));
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 	dev->interface = interface;