diff options
Diffstat (limited to 'src/jtag/drivers/mpsse.c')
| -rw-r--r-- | src/jtag/drivers/mpsse.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/src/jtag/drivers/mpsse.c b/src/jtag/drivers/mpsse.c index 924c974..06d008b 100644 --- a/src/jtag/drivers/mpsse.c +++ b/src/jtag/drivers/mpsse.c @@ -335,7 +335,13 @@ struct mpsse_ctx *mpsse_open(const uint16_t *vid, const uint16_t *pid, const cha ctx->write_size = 16384; ctx->read_chunk = malloc(ctx->read_chunk_size); ctx->read_buffer = malloc(ctx->read_size); - ctx->write_buffer = malloc(ctx->write_size); + + /* Use calloc to make valgrind happy: buffer_write() sets payload + * on bit basis, so some bits can be left uninitialized in write_buffer. + * Although this is perfectly ok with MPSSE, valgrind reports + * Syscall param ioctl(USBDEVFS_SUBMITURB).buffer points to uninitialised byte(s) */ + ctx->write_buffer = calloc(1, ctx->write_size); + if (!ctx->read_chunk || !ctx->read_buffer || !ctx->write_buffer) goto error; |