change wifi driver to cypress

hc

2024-01-05 071106ecf68c401173c58808b1cf5f68cc50d390

 kernel/fs/coda/psdev.c
..
..
@@ -1,13 +1,9 @@
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+// SPDX-License-Identifier: GPL-2.0-or-later
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 /*
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  *      	An implementation of a loadable kernel mode driver providing
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  *		multiple kernel/user space bidirectional communications links.
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  *
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  * 		Author: 	Alan Cox <alan@lxorguk.ukuu.org.uk>
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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
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- *		as published by the Free Software Foundation; either version
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- *		2 of the License, or (at your option) any later version.
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  * 
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  *              Adapted to become the Linux 2.0 Coda pseudo device
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  *              Peter  Braam  <braam@maths.ox.ac.uk> 
..
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@@ -39,12 +35,10 @@
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 #include <linux/device.h>
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 #include <linux/pid_namespace.h>
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 #include <asm/io.h>
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-#include <linux/poll.h>
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 #include <linux/uaccess.h>
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 #include <linux/coda.h>
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-#include <linux/coda_psdev.h>
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-
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+#include "coda_psdev.h"
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 #include "coda_linux.h"
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 #include "coda_int.h"
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@@ -105,8 +99,12 @@
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 	ssize_t retval = 0, count = 0;
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 	int error;
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+	/* make sure there is enough to copy out the (opcode, unique) values */
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+	if (nbytes < (2 * sizeof(u_int32_t)))
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+		return -EINVAL;
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+
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         /* Peek at the opcode, uniquefier */
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-	if (copy_from_user(&hdr, buf, 2 * sizeof(u_long)))
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+	if (copy_from_user(&hdr, buf, 2 * sizeof(u_int32_t)))
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 	        return -EFAULT;
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         if (DOWNCALL(hdr.opcode)) {
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@@ -124,17 +122,21 @@
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 				hdr.opcode, hdr.unique);
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 		        nbytes = size;
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 		}
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-		CODA_ALLOC(dcbuf, union outputArgs *, nbytes);
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+		dcbuf = kvmalloc(nbytes, GFP_KERNEL);
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+		if (!dcbuf) {
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+			retval = -ENOMEM;
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+			goto out;
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+		}
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 		if (copy_from_user(dcbuf, buf, nbytes)) {
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-			CODA_FREE(dcbuf, nbytes);
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+			kvfree(dcbuf);
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 			retval = -EFAULT;
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 			goto out;
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 		}
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 		/* what downcall errors does Venus handle ? */
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-		error = coda_downcall(vcp, hdr.opcode, dcbuf);
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+		error = coda_downcall(vcp, hdr.opcode, dcbuf, nbytes);
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-		CODA_FREE(dcbuf, nbytes);
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+		kvfree(dcbuf);
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 		if (error) {
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 			pr_warn("%s: coda_downcall error: %d\n",
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 				__func__, error);
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@@ -260,7 +262,7 @@
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 		goto out;
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 	}
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-	CODA_FREE(req->uc_data, sizeof(struct coda_in_hdr));
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+	kvfree(req->uc_data);
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 	kfree(req);
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 out:
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 	mutex_unlock(&vcp->vc_mutex);
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@@ -322,7 +324,7 @@
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 		/* Async requests need to be freed here */
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 		if (req->uc_flags & CODA_REQ_ASYNC) {
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-			CODA_FREE(req->uc_data, sizeof(struct coda_in_hdr));
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+			kvfree(req->uc_data);
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 			kfree(req);
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 			continue;
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 		}
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@@ -355,13 +357,13 @@
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 	.llseek		= noop_llseek,
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 };
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-static int init_coda_psdev(void)
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+static int __init init_coda_psdev(void)
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 {
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 	int i, err = 0;
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 	if (register_chrdev(CODA_PSDEV_MAJOR, "coda", &coda_psdev_fops)) {
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 		pr_err("%s: unable to get major %d\n",
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 		       __func__, CODA_PSDEV_MAJOR);
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-              return -EIO;
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+		return -EIO;
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 	}
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 	coda_psdev_class = class_create(THIS_MODULE, "coda");
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 	if (IS_ERR(coda_psdev_class)) {
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@@ -386,7 +388,8 @@
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 MODULE_DESCRIPTION("Coda Distributed File System VFS interface");
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 MODULE_ALIAS_CHARDEV_MAJOR(CODA_PSDEV_MAJOR);
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 MODULE_LICENSE("GPL");
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-MODULE_VERSION("6.6");
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+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
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+MODULE_VERSION("7.0");
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 static int __init init_coda(void)
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 {