diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/atom.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/atom.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/atom.c b/drivers/gpu/drm/amd/amdgpu/atom.c index be5d67c2c7a1..7a063e44d429 100644 --- a/drivers/gpu/drm/amd/amdgpu/atom.c +++ b/drivers/gpu/drm/amd/amdgpu/atom.c @@ -1502,7 +1502,7 @@ static void atom_get_vbios_build(struct atom_context *ctx) { unsigned char *atom_rom_hdr; unsigned char *str; - uint16_t base; + uint16_t base, len; base = CU16(ATOM_ROM_TABLE_PTR); atom_rom_hdr = CSTR(base); @@ -1515,8 +1515,9 @@ static void atom_get_vbios_build(struct atom_context *ctx) while (str < atom_rom_hdr && *str++) ; - if ((str + STRLEN_NORMAL) < atom_rom_hdr) - strscpy(ctx->build_num, str, STRLEN_NORMAL); + len = min(atom_rom_hdr - str, STRLEN_NORMAL); + if (len) + strscpy(ctx->build_num, str, len); } struct atom_context *amdgpu_atom_parse(struct card_info *card, void *bios) |