diff options
Diffstat (limited to 'arch/arc/kernel/unwind.c')
| -rw-r--r-- | arch/arc/kernel/unwind.c | 13 |
1 files changed, 4 insertions, 9 deletions
diff --git a/arch/arc/kernel/unwind.c b/arch/arc/kernel/unwind.c index cf2828ab0905..9f9ecc15556e 100644 --- a/arch/arc/kernel/unwind.c +++ b/arch/arc/kernel/unwind.c @@ -293,13 +293,13 @@ static void init_unwind_hdr(struct unwind_table *table, const u32 *cie = cie_for_fde(fde, table); signed ptrType; - if (cie == ¬_fde) /* only process FDE here */ + if (cie == ¬_fde) continue; if (cie == NULL || cie == &bad_cie) - continue; /* say FDE->CIE.version != 1 */ + return; ptrType = fde_pointer_type(cie); if (ptrType < 0) - continue; + return; ptr = (const u8 *)(fde + 2); if (!read_pointer(&ptr, (const u8 *)(fde + 1) + *fde, @@ -343,10 +343,6 @@ static void init_unwind_hdr(struct unwind_table *table, if (fde[1] == 0xffffffff) continue; /* this is a CIE */ - - if (*(u8 *)(cie + 2) != 1) - continue; /* FDE->CIE.version not supported */ - ptr = (const u8 *)(fde + 2); header->table[n].start = read_pointer(&ptr, (const u8 *)(fde + 1) + @@ -523,8 +519,7 @@ static const u32 *cie_for_fde(const u32 *fde, const struct unwind_table *table) if (*cie <= sizeof(*cie) + 4 || *cie >= fde[1] - sizeof(*fde) || (*cie & (sizeof(*cie) - 1)) - || (cie[1] != 0xffffffff) - || ( *(u8 *)(cie + 2) != 1)) /* version 1 supported */ + || (cie[1] != 0xffffffff)) return NULL; /* this is not a (valid) CIE */ return cie; } |