kbuild: fix NULL dereference in scripts/mod/modpost.c

[pandora-kernel.git] / scripts / mod / modpost.c

diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 30f3ac8..7e8079a 100644 (file)
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -658,7 +658,7 @@ static void warn_sec_mismatch(const char *modname, const char *fromsec,
                warn("%s - Section mismatch: reference to %s:%s from %s "
                     "before '%s' (at offset -0x%llx)\n",
                     modname, secname, refsymname, fromsec,
-                    elf->strtab + before->st_name,
+                    elf->strtab + after->st_name,
                     (long long)r.r_offset);
        } else {
                warn("%s - Section mismatch: reference to %s:%s from %s "
@@ -923,19 +923,14 @@ void __attribute__((format(printf, 2, 3))) buf_printf(struct buffer *buf,
 
        va_start(ap, fmt);
        len = vsnprintf(tmp, SZ, fmt, ap);
-       if (buf->size - buf->pos < len + 1) {
-               buf->size += 128;
-               buf->p = realloc(buf->p, buf->size);
-       }
-       strncpy(buf->p + buf->pos, tmp, len + 1);
-       buf->pos += len;
+       buf_write(buf, tmp, len);
        va_end(ap);
 }
 
 void buf_write(struct buffer *buf, const char *s, int len)
 {
        if (buf->size - buf->pos < len) {
-               buf->size += len;
+               buf->size += len + SZ;
                buf->p = realloc(buf->p, buf->size);
        }
        strncpy(buf->p + buf->pos, s, len);