diff options
Diffstat (limited to 'cpukit/dtc/libfdt')
| -rw-r--r-- | cpukit/dtc/libfdt/fdt_ro.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/cpukit/dtc/libfdt/fdt_ro.c b/cpukit/dtc/libfdt/fdt_ro.c index e19218422f..91cc6fefe3 100644 --- a/cpukit/dtc/libfdt/fdt_ro.c +++ b/cpukit/dtc/libfdt/fdt_ro.c @@ -67,11 +67,13 @@ const char *fdt_get_string(const void *fdt, int stroffset, int *lenp) len = fdt_size_dt_strings(fdt) - stroffset; } } else if (fdt_magic(fdt) == FDT_SW_MAGIC) { - if ((stroffset >= 0) - || (stroffset < -fdt_size_dt_strings(fdt))) + unsigned int sw_stroffset = -stroffset; + + if ((stroffset >= 0) || + (sw_stroffset > fdt_size_dt_strings(fdt))) goto fail; - if ((-stroffset) < len) - len = -stroffset; + if (sw_stroffset < len) + len = sw_stroffset; } else { err = -FDT_ERR_INTERNAL; goto fail; |