um: don't compare a pointer to 0

Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Link: http://lkml.kernel.org/r/1356030701-16284-27-git-send-email-sasha.levin@oracle.com
Cc: Richard Weinberger <richard@nod.at>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>

arch/x86/um/fault.c

@@ -20,7 +20,7 @@ int arch_fixup(unsigned long address, struct uml_pt_regs *regs)
 	const struct exception_table_entry *fixup;
 
 	fixup = search_exception_tables(address);
-	if (fixup != 0) {
+	if (fixup) {
 		UPT_IP(regs) = fixup->fixup;
 		return 1;
 	}