From 37929874d439d79e8f6128f400f63069ee1bbf3e Mon Sep 17 00:00:00 2001 From: Borislav Petkov Date: Mon, 10 Sep 2012 16:50:54 +0200 Subject: EDAC: Boundary-check edac_debug_level Only levels [0:4] are allowed so enforce that. Also, while at it, massage Kconfig text and add valid debug levels range to the module parameter description. Signed-off-by: Borislav Petkov --- drivers/edac/edac_module.c | 27 ++++++++++++++++++++------- 1 file changed, 20 insertions(+), 7 deletions(-) (limited to 'drivers/edac/edac_module.c') diff --git a/drivers/edac/edac_module.c b/drivers/edac/edac_module.c index 58a28d838f3..12c951a2c33 100644 --- a/drivers/edac/edac_module.c +++ b/drivers/edac/edac_module.c @@ -18,9 +18,29 @@ #define EDAC_VERSION "Ver: 3.0.0" #ifdef CONFIG_EDAC_DEBUG + +static int edac_set_debug_level(const char *buf, struct kernel_param *kp) +{ + unsigned long val; + int ret; + + ret = kstrtoul(buf, 0, &val); + if (ret) + return ret; + + if (val < 0 || val > 4) + return -EINVAL; + + return param_set_int(buf, kp); +} + /* Values of 0 to 4 will generate output */ int edac_debug_level = 2; EXPORT_SYMBOL_GPL(edac_debug_level); + +module_param_call(edac_debug_level, edac_set_debug_level, param_get_int, + &edac_debug_level, 0644); +MODULE_PARM_DESC(edac_debug_level, "EDAC debug level: [0-4], default: 2"); #endif /* scope is to module level only */ @@ -132,10 +152,3 @@ module_exit(edac_exit); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Doug Thompson www.softwarebitmaker.com, et al"); MODULE_DESCRIPTION("Core library routines for EDAC reporting"); - -/* refer to *_sysfs.c files for parameters that are exported via sysfs */ - -#ifdef CONFIG_EDAC_DEBUG -module_param(edac_debug_level, int, 0644); -MODULE_PARM_DESC(edac_debug_level, "Debug level"); -#endif -- cgit v1.2.3