[PATCH] IB/core: fix incorrect fall-through on switch statement

From: Colin King
Date: Mon Sep 11 2017 - 12:03:24 EST

From: Colin Ian King <colin.king@xxxxxxxxxxxxx>

In the case where mbox_status is OCRDMA_MBX_STATUS_FAILED and
add_status is OCRDMA_MBX_STATUS_FAILED err_num is assigned -EAGAIN
however the case OCRDMA_MBX_STATUS_FAILED is missing a break and
falls through to the default case which then re-assigns err_num
to -EFAULT. Fix this so that err_num is assigned to -EAGAIN
for the add_status OCRDMA_MBX_STATUS_FAILED case and -EFAULT

Detected by CoverityScan CID#703125 ("Missing break in switch")

Fixes: fe2caefcdf58 ("RDMA/ocrdma: Add driver for Emulex OneConnect IBoE RDMA adapter")
Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
drivers/infiniband/hw/ocrdma/ocrdma_hw.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_hw.c b/drivers/infiniband/hw/ocrdma/ocrdma_hw.c
index dcb5942f9fb5..65b166cc7437 100644
--- a/drivers/infiniband/hw/ocrdma/ocrdma_hw.c
+++ b/drivers/infiniband/hw/ocrdma/ocrdma_hw.c
@@ -252,7 +252,10 @@ static int ocrdma_get_mbx_errno(u32 status)
err_num = -EAGAIN;
+ default:
+ err_num = -EFAULT;
+ break;
err_num = -EFAULT;