diff options
Diffstat (limited to 'blobmsg.h')
| -rw-r--r-- | blobmsg.h | 9 |
1 files changed, 5 insertions, 4 deletions
@@ -204,9 +204,10 @@ void blobmsg_printf(struct blob_buf *buf, const char *name, const char *format, /* blobmsg to json formatting */ #define blobmsg_for_each_attr(pos, attr, rem) \ - for (rem = blobmsg_data_len(attr), pos = blobmsg_data(attr); \ - rem > 0 && (blob_pad_len(pos) <= rem) && \ - (blob_pad_len(pos) >= sizeof(struct blob_attr)); \ - rem -= blob_pad_len(pos), pos = blob_next(pos)) + for (rem = attr ? blobmsg_data_len(attr) : 0, \ + pos = attr ? blobmsg_data(attr) : 0; \ + rem > 0 && (blob_pad_len(pos) <= rem) && \ + (blob_pad_len(pos) >= sizeof(struct blob_attr)); \ + rem -= blob_pad_len(pos), pos = blob_next(pos)) #endif |