Revision 00b4703f03ce04bd7f2f912fd05a243096ab826f authored by Ondrej Zary on 29 July 2010, 20:32:20 UTC, committed by Russell King on 30 July 2010, 22:29:33 UTC
I was testing two CyberPro 2000 based PCI cards on x86 and the machine always hanged completely when the cyber2000fb module was loaded. It seems that the card hangs when some registers are accessed too quickly after writing RAMDAC control register. With this patch, both card work. Add delay after RAMDAC control register write to prevent hangs on module load. Signed-off-by: Ondrej Zary <linux@rainbow-software.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
1 parent f2d2420
getopt.c
/*
* getopt.c
*/
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/net.h>
#include "getopt.h"
/**
* smb_getopt - option parser
* @caller: name of the caller, for error messages
* @options: the options string
* @opts: an array of &struct option entries controlling parser operations
* @optopt: output; will contain the current option
* @optarg: output; will contain the value (if one exists)
* @flag: output; may be NULL; should point to a long for or'ing flags
* @value: output; may be NULL; will be overwritten with the integer value
* of the current argument.
*
* Helper to parse options on the format used by mount ("a=b,c=d,e,f").
* Returns opts->val if a matching entry in the 'opts' array is found,
* 0 when no more tokens are found, -1 if an error is encountered.
*/
int smb_getopt(char *caller, char **options, struct option *opts,
char **optopt, char **optarg, unsigned long *flag,
unsigned long *value)
{
char *token;
char *val;
int i;
do {
if ((token = strsep(options, ",")) == NULL)
return 0;
} while (*token == '\0');
*optopt = token;
*optarg = NULL;
if ((val = strchr (token, '=')) != NULL) {
*val++ = 0;
if (value)
*value = simple_strtoul(val, NULL, 0);
*optarg = val;
}
for (i = 0; opts[i].name != NULL; i++) {
if (!strcmp(opts[i].name, token)) {
if (!opts[i].flag && (!val || !*val)) {
printk("%s: the %s option requires an argument\n",
caller, token);
return -1;
}
if (flag && opts[i].flag)
*flag |= opts[i].flag;
return opts[i].val;
}
}
printk("%s: Unrecognized mount option %s\n", caller, token);
return -1;
}
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