/* Generic I/O port emulation, based on MN10300 code
 *
 * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
 * Written by David Howells (dhowells@redhat.com)
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public Licence
 * as published by the Free Software Foundation; either version
 * 2 of the Licence, or (at your option) any later version.
 */
#ifndef __ASM_GENERIC_PCI_IOMAP_H
#define __ASM_GENERIC_PCI_IOMAP_H

struct pci_dev;
#ifdef CONFIG_PCI
/* Create a virtual mapping cookie for a PCI BAR (memory or IO) */
extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max);
extern void __iomem *pci_iomap_wc(struct pci_dev *dev, int bar, unsigned long max);
extern void __iomem *pci_iomap_range(struct pci_dev *dev, int bar,
				     unsigned long offset,
				     unsigned long maxlen);
extern void __iomem *pci_iomap_wc_range(struct pci_dev *dev, int bar,
					unsigned long offset,
					unsigned long maxlen);
/* Create a virtual mapping cookie for a port on a given PCI device.
 * Do not call this directly, it exists to make it easier for architectures
 * to override */
#ifdef CONFIG_NO_GENERIC_PCI_IOPORT_MAP
extern void __iomem *__pci_ioport_map(struct pci_dev *dev, unsigned long port,
				      unsigned int nr);
#else
#define __pci_ioport_map(dev, port, nr) ioport_map((port), (nr))
#endif

#elif defined(CONFIG_GENERIC_PCI_IOMAP)
static inline void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max)
{
	return NULL;
}

static inline void __iomem *pci_iomap_wc(struct pci_dev *dev, int bar, unsigned long max)
{
	return NULL;
}
static inline void __iomem *pci_iomap_range(struct pci_dev *dev, int bar,
					    unsigned long offset,
					    unsigned long maxlen)
{
	return NULL;
}
static inline void __iomem *pci_iomap_wc_range(struct pci_dev *dev, int bar,
					       unsigned long offset,
					       unsigned long maxlen)
{
	return NULL;
}
#endif

#endif /* __ASM_GENERIC_IO_H */
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<tr><th>author</th><td>Johan Hovold &lt;johan@kernel.org&gt;</td><td class='right'>2017-01-03 16:39:49 +0100</td></tr>
<tr><th>committer</th><td>Johan Hovold &lt;johan@kernel.org&gt;</td><td class='right'>2017-01-04 10:37:18 +0100</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/?id=21ce57840243c7b70fbc1ebd3dceeb70bb6e9e09'>21ce57840243c7b70fbc1ebd3dceeb70bb6e9e09</a> (<a href='/cgit.cgi/linux/net-next.git/patch/?id=21ce57840243c7b70fbc1ebd3dceeb70bb6e9e09'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=21ce57840243c7b70fbc1ebd3dceeb70bb6e9e09'>442cf1fa484c3a4e1950cbf162cd28646b54c087</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/?id=5d9b0f859babe96175cd33d7162a9463a875ffde'>5d9b0f859babe96175cd33d7162a9463a875ffde</a> (<a href='/cgit.cgi/linux/net-next.git/diff/?id=21ce57840243c7b70fbc1ebd3dceeb70bb6e9e09&amp;id2=5d9b0f859babe96175cd33d7162a9463a875ffde'>diff</a>)</td></tr></table>
<div class='commit-subject'>USB: serial: kobil_sct: fix NULL-deref in write</div><div class='commit-msg'>Fix NULL-pointer dereference in write() should the device lack the
expected interrupt-out endpoint:

Unable to handle kernel NULL pointer dereference at virtual address 00000054
...
PC is at kobil_write+0x144/0x2a0 [kobil_sct]

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Cc: stable &lt;stable@vger.kernel.org&gt;
Signed-off-by: Johan Hovold &lt;johan@kernel.org&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=21ce57840243c7b70fbc1ebd3dceeb70bb6e9e09'>Diffstat</a></div><table summary='diffstat' class='diffstat'>