[PATCH-next] x86/kernel: Fix unchecked return value

[Khaled ROMDHANI]

>From the coverity scan analysis, the return value from
insn_decode_kernel is not checked. It is a macro constructed
from the insn_decode function which may fail and return
negative integer. Fix this by explicitly checking the
return value.

Addresses-Coverity: ("Unchecked return value")
Signed-off-by: Khaled ROMDHANI <khaledromdhani216@xxxxxxxxx>
---
 arch/x86/kernel/jump_label.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kernel/jump_label.c b/arch/x86/kernel/jump_label.c
index a762dc1c615e..bf0ea003b6e7 100644
--- a/arch/x86/kernel/jump_label.c
+++ b/arch/x86/kernel/jump_label.c
@@ -23,7 +23,7 @@ int arch_jump_entry_size(struct jump_entry *entry)
 {
 	struct insn insn = {};
 
-	insn_decode_kernel(&insn, (void *)jump_entry_code(entry));
+	WARN_ON(insn_decode_kernel(&insn, (void *)jump_entry_code(entry)));
 	BUG_ON(insn.length != 2 && insn.length != 5);
 
 	return insn.length;
-- 
2.17.1