diff options
Diffstat (limited to 'c/src/lib/libbsp/m68k/gen68360/console/console.c')
| -rw-r--r-- | c/src/lib/libbsp/m68k/gen68360/console/console.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/c/src/lib/libbsp/m68k/gen68360/console/console.c b/c/src/lib/libbsp/m68k/gen68360/console/console.c index 0c43317ef7..8233449003 100644 --- a/c/src/lib/libbsp/m68k/gen68360/console/console.c +++ b/c/src/lib/libbsp/m68k/gen68360/console/console.c @@ -231,9 +231,12 @@ smc1PollRead (int minor) static ssize_t smc1InterruptWrite (int minor, const char *buf, size_t len) { - smcTxBd->buffer = (char *)buf; - smcTxBd->length = len; - smcTxBd->status = M360_BD_READY | M360_BD_WRAP | M360_BD_INTERRUPT; + if (len > 0) { + smcTxBd->buffer = (char *)buf; + smcTxBd->length = len; + smcTxBd->status = M360_BD_READY | M360_BD_WRAP | M360_BD_INTERRUPT; + } + return 0; } |