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authorJim Cromie <jim.cromie@gmail.com>2012-04-27 14:30:38 -0600
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-04-30 16:25:39 -0400
commitaf442399fcf378a21ffe924b182f6d9ee70001ca (patch)
treec4489c25edde2f6c4aaeac9eaf2d6d784f6572f9 /lib
parent6ab676e96422f33a873006096f928feeded7ce3b (diff)
downloadlinux-af442399fcf378a21ffe924b182f6d9ee70001ca.tar.gz
dynamic_debug: simplify dynamic_debug_init error exit
We dont want errors while parsing ddebug_query to unload ddebug tables, so set success after tables are loaded, and return 0 after query parsing is done. Simplify error handling code since its no longer used for success, and change goto label to out_err to clarify this. Signed-off-by: Jim Cromie <jim.cromie@gmail.com> Acked-by: Jason Baron <jbaron@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'lib')
-rw-r--r--lib/dynamic_debug.c19
1 files changed, 8 insertions, 11 deletions
diff --git a/lib/dynamic_debug.c b/lib/dynamic_debug.c
index 3b06f926d5b..66e0ec4d21f 100644
--- a/lib/dynamic_debug.c
+++ b/lib/dynamic_debug.c
@@ -984,7 +984,7 @@ static int __init dynamic_debug_init(void)
if (strcmp(modname, iter->modname)) {
ret = ddebug_add_module(iter_start, n, modname);
if (ret)
- goto out_free;
+ goto out_err;
n = 0;
modname = iter->modname;
iter_start = iter;
@@ -993,9 +993,11 @@ static int __init dynamic_debug_init(void)
}
ret = ddebug_add_module(iter_start, n, modname);
if (ret)
- goto out_free;
+ goto out_err;
- /* ddebug_query boot param got passed -> set it up */
+ ddebug_init_success = 1;
+
+ /* apply ddebug_query boot param, dont unload tables on err */
if (ddebug_setup_string[0] != '\0') {
pr_warn("ddebug_query param name is deprecated,"
" change it to dyndbg\n");
@@ -1005,9 +1007,6 @@ static int __init dynamic_debug_init(void)
ddebug_setup_string);
else
pr_info("%d changes by ddebug_query\n", ret);
-
- /* keep tables even on ddebug_query parse error */
- ret = 0;
}
/* now that ddebug tables are loaded, process all boot args
* again to find and activate queries given in dyndbg params.
@@ -1021,12 +1020,10 @@ static int __init dynamic_debug_init(void)
parse_args("dyndbg params", cmdline, NULL,
0, 0, 0, &ddebug_dyndbg_boot_param_cb);
kfree(cmdline);
+ return 0;
-out_free:
- if (ret)
- ddebug_remove_all_tables();
- else
- ddebug_init_success = 1;
+out_err:
+ ddebug_remove_all_tables();
return 0;
}
/* Allow early initialization for boot messages via boot param */