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module: Fix ERRORs reported by checkpatch.pl

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Checkpatch reports following errors:

ERROR: do not use assignment in if condition
+	if ((colon = strnchr(name, MODULE_NAME_LEN, ':')) != NULL) {

ERROR: do not use assignment in if condition
+		if ((mod = find_module_all(name, colon - name, false)) != NULL)

ERROR: do not use assignment in if condition
+			if ((ret = find_kallsyms_symbol_value(mod, name)) != 0)

ERROR: do not initialise globals to 0
+int modules_disabled = 0;

Fix them.

The following one has to remain, because the condition has to be evaluated
multiple times by the macro wait_event_interruptible_timeout().

ERROR: do not use assignment in if condition
+	if (wait_event_interruptible_timeout(module_wq,

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
This commit is contained in:
Christophe Leroy 2022-06-13 08:02:01 +02:00 committed by Luis Chamberlain
parent ae39e9ed96
commit ecc726f145
2 changed files with 7 additions and 4 deletions
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9
kernel/module/kallsyms.c
View File

@ -466,14 +466,17 @@ unsigned long module_kallsyms_lookup_name(const char *name)
/* Don't lock: we're in enough trouble already. */
preempt_disable();
if ((colon = strnchr(name, MODULE_NAME_LEN, ':')) != NULL) {
if ((mod = find_module_all(name, colon - name, false)) != NULL)
colon = strnchr(name, MODULE_NAME_LEN, ':');
if (colon) {
mod = find_module_all(name, colon - name, false);
if (mod)
ret = find_kallsyms_symbol_value(mod, colon + 1);
} else {
list_for_each_entry_rcu(mod, &modules, list) {
if (mod->state == MODULE_STATE_UNFORMED)
continue;
if ((ret = find_kallsyms_symbol_value(mod, name)) != 0)
ret = find_kallsyms_symbol_value(mod, name);
if (ret)
break;
}
}

2
kernel/module/main.c
View File

@ -119,7 +119,7 @@ static void mod_update_bounds(struct module *mod)
}
/* Block module loading/unloading? */
int modules_disabled = 0;
int modules_disabled;
core_param(nomodule, modules_disabled, bint, 0);
/* Waiting for a module to finish initializing? */