diff options
| -rw-r--r-- | arch/x86/kernel/paravirt.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c index c0e0101133f3..7f9121f2fdac 100644 --- a/arch/x86/kernel/paravirt.c +++ b/arch/x86/kernel/paravirt.c @@ -163,10 +163,10 @@ unsigned paravirt_patch_insns(void *insnbuf, unsigned len, { unsigned insn_len = end - start; - if (insn_len > len || start == NULL) - insn_len = len; - else - memcpy(insnbuf, start, insn_len); + /* Alternative instruction is too large for the patch site and we cannot continue: */ + BUG_ON(insn_len > len || start == NULL); + + memcpy(insnbuf, start, insn_len); return insn_len; } |