From: Vyacheslav Cherkashin <v.cherkashin@samsung.com>
Date: Thu, 14 Feb 2013 16:41:23 +0000 (+0400)
Subject: check for correct values
X-Git-Tag: accepted/tizen/mobile/20160407.001200~796
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=222257a20141dd947de933b0da7073d15bbc0db3;p=platform%2Fkernel%2Fswap-modules.git

check for correct values
---

diff --git a/kprobe/arch/dbi_kprobes.c b/kprobe/arch/dbi_kprobes.c
index c923035..959d1eb 100644
--- a/kprobe/arch/dbi_kprobes.c
+++ b/kprobe/arch/dbi_kprobes.c
@@ -106,11 +106,22 @@ void arch_disarm_uretprobe (struct kretprobe *p, struct task_struct *tsk)
 
 int arch_init_module_dependencies(void)
 {
+	int ret;
+
 	sched_addr = swap_ksyms("__switch_to");
 	fork_addr = swap_ksyms("do_fork");
 	exit_addr = swap_ksyms("do_exit");
 
-	init_module_dependencies();
+	if (sched_addr == NULL ||
+	    fork_addr == NULL ||
+	    exit_addr == NULL) {
+		return -ESRCH;
+	}
+
+	ret = init_module_dependencies();
+	if (ret) {
+		return ret;
+	}
 
 	return asm_init_module_dependencies();
 }