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![Rupesh Gujare](/assets/img/avatar_default.png)
This patch fixes Kernel Documentation style. Signed-off-by: Rupesh Gujare <rupesh.gujare@atmel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
54 lines
1.3 KiB
C
54 lines
1.3 KiB
C
/* -----------------------------------------------------------------------------
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* Copyright (c) 2011 Ozmo Inc
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* Released under the GNU General Public License Version 2 (GPLv2).
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* -----------------------------------------------------------------------------
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*/
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#include <linux/usb.h>
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#include "ozdbg.h"
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#ifdef WANT_URB_PARANOIA
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#include "ozurbparanoia.h"
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#define OZ_MAX_URBS 1000
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struct urb *g_urb_memory[OZ_MAX_URBS];
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int g_nb_urbs;
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DEFINE_SPINLOCK(g_urb_mem_lock);
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void oz_remember_urb(struct urb *urb)
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{
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unsigned long irq_state;
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spin_lock_irqsave(&g_urb_mem_lock, irq_state);
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if (g_nb_urbs < OZ_MAX_URBS) {
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g_urb_memory[g_nb_urbs++] = urb;
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oz_dbg(ON, "urb up = %d %p\n", g_nb_urbs, urb);
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} else {
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oz_dbg(ON, "ERROR urb buffer full\n");
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}
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spin_unlock_irqrestore(&g_urb_mem_lock, irq_state);
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}
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/*
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*/
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int oz_forget_urb(struct urb *urb)
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{
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unsigned long irq_state;
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int i;
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int rc = -1;
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spin_lock_irqsave(&g_urb_mem_lock, irq_state);
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for (i = 0; i < g_nb_urbs; i++) {
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if (g_urb_memory[i] == urb) {
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rc = 0;
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if (--g_nb_urbs > i)
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memcpy(&g_urb_memory[i], &g_urb_memory[i+1],
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(g_nb_urbs - i) * sizeof(struct urb *));
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oz_dbg(ON, "urb down = %d %p\n", g_nb_urbs, urb);
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}
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}
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spin_unlock_irqrestore(&g_urb_mem_lock, irq_state);
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return rc;
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}
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#endif /* #ifdef WANT_URB_PARANOIA */
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