diff options
| -rw-r--r-- | arch/mips/kernel/process.c | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c index 7bd0af0ea86d..96ed8e7d4bac 100644 --- a/arch/mips/kernel/process.c +++ b/arch/mips/kernel/process.c @@ -289,9 +289,9 @@ static inline int is_sp_move_ins(union mips_instruction *ip) static int get_frame_info(struct mips_frame_info *info) { bool is_mmips = IS_ENABLED(CONFIG_CPU_MICROMIPS); - union mips_instruction insn, *ip; - unsigned max_insns = info->func_size / sizeof(union mips_instruction); - unsigned i; + union mips_instruction insn, *ip, *ip_end; + const unsigned int max_insns = 128; + unsigned int i; info->pc_offset = -1; info->frame_size = 0; @@ -300,11 +300,9 @@ static int get_frame_info(struct mips_frame_info *info) if (!ip) goto err; - if (max_insns == 0) - max_insns = 128U; /* unknown function size */ - max_insns = min(128U, max_insns); + ip_end = (void *)ip + info->func_size; - for (i = 0; i < max_insns; i++, ip++) { + for (i = 0; i < max_insns && ip < ip_end; i++, ip++) { if (is_mmips && mm_insn_16bit(ip->halfword[0])) { insn.halfword[0] = 0; insn.halfword[1] = ip->halfword[0]; |