diff options
Diffstat (limited to 'drivers/input/key_matrix.c')
| -rw-r--r-- | drivers/input/key_matrix.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/input/key_matrix.c b/drivers/input/key_matrix.c index 715e57a2af..c08caa6829 100644 --- a/drivers/input/key_matrix.c +++ b/drivers/input/key_matrix.c @@ -153,6 +153,8 @@ int key_matrix_decode_fdt(struct key_matrix *config, const void *blob, int node) { const struct fdt_property *prop; + const char prefix[] = "linux,"; + int plen = sizeof(prefix) - 1; int offset; /* Check each property name for ones that we understand */ @@ -168,16 +170,17 @@ int key_matrix_decode_fdt(struct key_matrix *config, const void *blob, /* Name needs to match "1,<type>keymap" */ debug("%s: property '%s'\n", __func__, name); - if (strncmp(name, "1,", 2) || len < 8 || - strcmp(name + len - 6, "keymap")) + if (strncmp(name, prefix, plen) || + len < plen + 6 || + strcmp(name + len - 6, "keymap")) continue; - len -= 8; + len -= plen + 6; if (len == 0) { config->plain_keycode = create_keymap(config, (u32 *)prop->data, fdt32_to_cpu(prop->len), KEY_FN, &config->fn_pos); - } else if (0 == strncmp(name + 2, "fn-", len)) { + } else if (0 == strncmp(name + plen, "fn-", len)) { config->fn_keycode = create_keymap(config, (u32 *)prop->data, fdt32_to_cpu(prop->len), -1, NULL); |
