diff options
Diffstat (limited to 'drivers/staging/greybus/es1-ap-usb.c')
| -rw-r--r-- | drivers/staging/greybus/es1-ap-usb.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/staging/greybus/es1-ap-usb.c b/drivers/staging/greybus/es1-ap-usb.c index 8df1643..410acd3 100644 --- a/drivers/staging/greybus/es1-ap-usb.c +++ b/drivers/staging/greybus/es1-ap-usb.c @@ -11,8 +11,10 @@ #include <linux/errno.h> #include <linux/sizes.h> #include <linux/usb.h> + #include "greybus.h" #include "svc_msg.h" +#include "kernel_ver.h" /* Memory sizes for the buffers sent to/from the ES1 controller */ #define ES1_SVC_MSG_SIZE (sizeof(struct svc_msg) + SZ_64K) @@ -114,7 +116,8 @@ static int alloc_gbuf_data(struct gbuf *gbuf, unsigned int size, gfp_t gfp_mask) * we will encode the cport number in the first byte of the buffer, so * set the second byte to be the "transfer buffer" */ - buffer[0] = gbuf->cport->id; + BUG_ON(gbuf->cport_id > (u16)U8_MAX); + buffer[0] = gbuf->cport_id; gbuf->transfer_buffer = &buffer[1]; gbuf->transfer_buffer_length = size; gbuf->actual_length = size; |
