Fix sparse warnings in probes_manager.c

diff --git a/driver/probes_manager.c b/driver/probes_manager.c
index a60fd94..647be79 100644 (file)
--- a/driver/probes_manager.c
+++ b/driver/probes_manager.c
@@ -288,7 +288,7 @@ add_probe (unsigned long addr)
        return result;
 }
 
-int reset_probes()
+int reset_probes(void)
 {
        struct hlist_node *node, *tnode;
        kernel_probe_t *p;
@@ -394,8 +394,7 @@ remove_probe (unsigned long addr)
        return result;
 }
 
-DEFINE_PER_CPU (kernel_probe_t *, gpKernProbe) = NULL;
-EXPORT_PER_CPU_SYMBOL_GPL(gpKernProbe);
+static DEFINE_PER_CPU(kernel_probe_t *, gpKernProbe) = NULL;
 
 unsigned long
 def_jprobe_event_pre_handler (kernel_probe_t * probe, struct pt_regs *regs)
@@ -415,7 +414,7 @@ def_jprobe_event_handler (unsigned long arg1, unsigned long arg2, unsigned long
        if (pf_probe == probe)
        {
                if (us_proc_probes & US_PROC_PF_INSTLD)
-                       do_page_fault_j_pre_code(arg1, arg2, arg3);
+                       do_page_fault_j_pre_code(arg1, arg2, (struct pt_regs *) arg3);
 #ifdef CONFIG_X86
                /* FIXME on x86 targets do_page_fault instrumentation may lead to
                 * abnormal termination of some applications (in most cases GUI apps).
@@ -531,7 +530,7 @@ void dbi_install_user_handlers(void)
                if(find_pre_handler)
                {
                        pre_handler_addr = find_pre_handler(probe->addr);
-                       if (find_pre_handler != 0) {
+                       if (find_pre_handler != NULL) {
                                DPRINTF("Added user pre handler for 0x%lx: 0x%lx",
                                                probe->addr, find_pre_handler);
                                probe->jprobe.pre_entry = (kprobe_pre_entry_handler_t)pre_handler_addr;