diff options
Diffstat (limited to 'drivers/infiniband/hw/hfi1/eprom.c')
| -rw-r--r-- | drivers/infiniband/hw/hfi1/eprom.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/hfi1/eprom.c b/drivers/infiniband/hw/hfi1/eprom.c index 26da124c88e2..1613af1c58d9 100644 --- a/drivers/infiniband/hw/hfi1/eprom.c +++ b/drivers/infiniband/hw/hfi1/eprom.c @@ -204,7 +204,10 @@ done_asic: return ret; } -/* magic character sequence that trails an image */ +/* magic character sequence that begins an image */ +#define IMAGE_START_MAGIC "APO=" + +/* magic character sequence that might trail an image */ #define IMAGE_TRAIL_MAGIC "egamiAPO" /* EPROM file types */ @@ -263,6 +266,12 @@ static int read_partition_platform_config(struct hfi1_devdata *dd, void **data, return ret; } + /* config partition is valid only if it starts with IMAGE_START_MAGIC */ + if (memcmp(buffer, IMAGE_START_MAGIC, strlen(IMAGE_START_MAGIC))) { + kfree(buffer); + return -ENOENT; + } + /* scan for image magic that may trail the actual data */ p = strnstr(buffer, IMAGE_TRAIL_MAGIC, P1_SIZE); if (p) |