/*===========================================================================
 Copyright (c) 1998-2000, The Santa Cruz Operation 
 All rights reserved.
 
 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions are met:

 *Redistributions of source code must retain the above copyright notice,
 this list of conditions and the following disclaimer.

 *Redistributions in binary form must reproduce the above copyright notice,
 this list of conditions and the following disclaimer in the documentation
 and/or other materials provided with the distribution.

 *Neither name of The Santa Cruz Operation nor the names of its contributors
 may be used to endorse or promote products derived from this software
 without specific prior written permission. 

 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS
 IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE
 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 INTERRUPTION)
 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
 DAMAGE. 
 =========================================================================*/

/*
 *	logdir()
 *
 *	This routine does not use the getpwent(3) library routine
 *	because the latter uses the stdio package.  The allocation of
 *	storage in this package destroys the integrity of the shell's
 *	storage allocation.
 */

#include <unistd.h>
#include <string.h>
#include "global.h"

#define	OURBUFSIZ	160	/* renamed: avoid conflict with <stdio.h> */

static char const rcsid[] = "$Id: logdir.c,v 1.5 2002/07/28 15:40:07 broeker Exp $";

static char line[OURBUFSIZ+1];

/* Internal prototypes: */
static	char	*nextfield(char *p);


static char *
nextfield(char *p)
{
	while (*p && *p != ':')
		++p;
	if (*p) *p++ = 0;
	return(p);
}

char *
logdir(char *name)
{
	char	*p;
	int	i, j;
	int	pwf;
	
	/* attempt to open the password file */
	if ((pwf = myopen("/etc/passwd", 0, 0)) == -1)
		return(0);
		
	/* find the matching password entry */
	do {
		/* get the next line in the password file */
		i = read(pwf, line, OURBUFSIZ);
		for (j = 0; j < i; j++)
			if (line[j] == '\n')
				break;
		/* return a null pointer if the whole file has been read */
		if (j >= i)
			return(0);
		line[++j] = 0;			/* terminate the line */
		(void) lseek(pwf, (long) (j - i), 1);	/* point at the next line */
		p = nextfield(line);		/* get the logname */
	} while (*name != *line ||	/* fast pretest */
	    strcmp(name, line) != 0);
	(void) close(pwf);
	
	/* skip the intervening fields */
	p = nextfield(p);
	p = nextfield(p);
	p = nextfield(p);
	p = nextfield(p);
	
	/* return the login directory */
	(void) nextfield(p);
	return(p);
}
 type='hidden' name='id' value='618c808968852609d2d9f0e5cfc351a4807ef8d0'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Chen-Yu Tsai &lt;wens@csie.org&gt;</td><td class='right'>2016-11-11 11:12:43 +0800</td></tr>
<tr><th>committer</th><td>Mark Brown &lt;broonie@kernel.org&gt;</td><td class='right'>2016-11-11 15:34:45 +0000</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/sound/soc/blackfin?id=618c808968852609d2d9f0e5cfc351a4807ef8d0'>618c808968852609d2d9f0e5cfc351a4807ef8d0</a> (<a href='/cgit.cgi/linux/net-next.git/patch/sound/soc/blackfin?id=618c808968852609d2d9f0e5cfc351a4807ef8d0'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=618c808968852609d2d9f0e5cfc351a4807ef8d0'>01a8d928c06fe7bef488f55bade6ba37b958bb5f</a> /<a href='/cgit.cgi/linux/net-next.git/tree/sound/soc/blackfin?id=618c808968852609d2d9f0e5cfc351a4807ef8d0'>sound/soc/blackfin</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/sound/soc/blackfin?id=1001354ca34179f3db924eb66672442a173147dc'>1001354ca34179f3db924eb66672442a173147dc</a> (<a href='/cgit.cgi/linux/net-next.git/diff/sound/soc/blackfin?id=618c808968852609d2d9f0e5cfc351a4807ef8d0&amp;id2=1001354ca34179f3db924eb66672442a173147dc'>diff</a>)</td></tr></table>
<div class='commit-subject'>regulator: axp20x: Fix axp809 ldo_io registration error on cold boot</div><div class='commit-msg'>The maximum supported voltage for ldo_io# is 3.3V, but on cold boot
the selector comes up at 0x1f, which maps to 3.8V. This was previously
corrected by Allwinner's U-boot, which set all regulators on the PMICs
to some pre-configured voltage. With recent progress in U-boot SPL
support, this is no longer the case. In any case we should handle
this quirk in the kernel driver as well.

This invalid setting causes _regulator_get_voltage() to fail with -EINVAL
which causes regulator registration to fail when constrains are used:

[    1.054181] vcc-pg: failed to get the current voltage(-22)
[    1.059670] axp20x-regulator axp20x-regulator.0: Failed to register ldo_io0
[    1.069749] axp20x-regulator: probe of axp20x-regulator.0 failed with error -22

This commits makes the axp20x regulator driver accept the 0x1f register
value, fixing this.

The datasheet does not guarantee reliable operation above 3.3V, so on
boards where this regulator is used the regulator-max-microvolt setting
must be 3.3V or less.

This is essentially the same as the commit f40d4896bf32 ("regulator:
axp20x: Fix axp22x ldo_io registration error on cold boot") for AXP22x
PMICs.

Fixes: a51f9f4622a3 ("regulator: axp20x: support AXP809 variant")
Signed-off-by: Chen-Yu Tsai &lt;wens@csie.org&gt;
Signed-off-by: Mark Brown &lt;broonie@kernel.org&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=618c808968852609d2d9f0e5cfc351a4807ef8d0'>Diffstat</a> (limited to 'sound/soc/blackfin')</div><table summary='diffstat' class='diffstat'>