modify sin led gpio

hc

2024-05-13 9d77db3c730780c8ef5ccd4b66403ff5675cfe4e

 kernel/sound/usb/usx2y/usb_stream.c
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..
@@ -1,19 +1,6 @@
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+// SPDX-License-Identifier: GPL-2.0-or-later
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 /*
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  * Copyright (C) 2007, 2008 Karsten Wiese <fzu@wemgehoertderstaat.de>
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- *
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- * This program is free software; you can redistribute it and/or modify it
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- * under the terms of the GNU General Public License as published by the
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- * Free Software Foundation; either version 2 of the License, or (at your
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- * option) any later version.
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- *
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- * This program is distributed in the hope that it will be useful, but
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- * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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- * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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- * for more details.
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- *
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- * You should have received a copy of the GNU General Public License
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- * along with this program; if not, write to the Free Software Foundation,
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- * Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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  */
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5
 
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 #include <linux/usb.h>
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..
@@ -104,7 +91,12 @@
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91
 
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 	for (u = 0; u < USB_STREAM_NURBS; ++u) {
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 		sk->inurb[u] = usb_alloc_urb(sk->n_o_ps, GFP_KERNEL);
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+		if (!sk->inurb[u])
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+			return -ENOMEM;
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+
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 		sk->outurb[u] = usb_alloc_urb(sk->n_o_ps, GFP_KERNEL);
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+		if (!sk->outurb[u])
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+			return -ENOMEM;
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 	}
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 	if (init_pipe_urbs(sk, use_packsize, sk->inurb, indata, dev, in_pipe) ||
..
..
@@ -150,9 +142,12 @@
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 	if (!s)
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 		return;
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144
 
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-	free_pages((unsigned long)sk->write_page, get_order(s->write_size));
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-	sk->write_page = NULL;
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-	free_pages((unsigned long)s, get_order(s->read_size));
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+	if (sk->write_page) {
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+		free_pages_exact(sk->write_page, s->write_size);
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+		sk->write_page = NULL;
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+	}
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+
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+	free_pages_exact(s, s->read_size);
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 	sk->s = NULL;
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 }
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153
 
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@@ -167,7 +162,6 @@
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 	int read_size = sizeof(struct usb_stream);
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 	int write_size;
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 	int usb_frames = dev->speed == USB_SPEED_HIGH ? 8000 : 1000;
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-	int pg;
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165
 
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 	in_pipe = usb_rcvisocpipe(dev, in_endpoint);
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 	out_pipe = usb_sndisocpipe(dev, out_endpoint);
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@@ -197,11 +191,10 @@
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 		goto out;
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 	}
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193
 
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-	pg = get_order(read_size);
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-	sk->s = (void *) __get_free_pages(GFP_KERNEL|__GFP_COMP|__GFP_ZERO|
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-					  __GFP_NOWARN, pg);
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+	sk->s = alloc_pages_exact(read_size,
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+				  GFP_KERNEL | __GFP_ZERO | __GFP_NOWARN);
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 	if (!sk->s) {
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-		snd_printk(KERN_WARNING "couldn't __get_free_pages()\n");
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+		pr_warn("us122l: couldn't allocate read buffer\n");
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 		goto out;
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 	}
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 	sk->s->cfg.version = USB_STREAM_INTERFACE_VERSION;
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@@ -216,13 +209,11 @@
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 	sk->s->period_size = frame_size * period_frames;
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210
 
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 	sk->s->write_size = write_size;
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-	pg = get_order(write_size);
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212
 
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-	sk->write_page =
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-		(void *)__get_free_pages(GFP_KERNEL|__GFP_COMP|__GFP_ZERO|
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-					 __GFP_NOWARN, pg);
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+	sk->write_page = alloc_pages_exact(write_size,
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+					   GFP_KERNEL | __GFP_ZERO | __GFP_NOWARN);
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 	if (!sk->write_page) {
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-		snd_printk(KERN_WARNING "couldn't __get_free_pages()\n");
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+		pr_warn("us122l: couldn't allocate write buffer\n");
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 		usb_stream_free(sk);
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 		return NULL;
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 	}