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authorMustafa Ismail <mustafa.ismail@intel.com>2016-07-12 19:48:46 +0300
committerDoug Ledford <dledford@redhat.com>2016-08-02 21:17:38 +0300
commitda5c138185006a6e92ea804046543e2ed1401229 (patch)
treedb3fedfc7ee859f117e8fa65cc42260e6558d0d9 /drivers/infiniband/hw/i40iw
parent8c1ea86d44d35ff8d3a01b62e2505c9d7e48ac5a (diff)
downloadlinux-da5c138185006a6e92ea804046543e2ed1401229.tar.xz
i40iw: Add NULL check for puda buffer
i40iw_puda_get_listbuf may return NULL if the list is empty. Add NULL check prior to accessing the pointer. Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com> Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/hw/i40iw')
-rw-r--r--drivers/infiniband/hw/i40iw/i40iw_puda.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/i40iw/i40iw_puda.c b/drivers/infiniband/hw/i40iw/i40iw_puda.c
index e9c6e82af9c7..c62d354f7810 100644
--- a/drivers/infiniband/hw/i40iw/i40iw_puda.c
+++ b/drivers/infiniband/hw/i40iw/i40iw_puda.c
@@ -1025,6 +1025,8 @@ static void i40iw_ieq_compl_pfpdu(struct i40iw_puda_rsrc *ieq,
u16 txoffset, bufoffset;
buf = i40iw_puda_get_listbuf(pbufl);
+ if (!buf)
+ return;
nextseqnum = buf->seqnum + fpdu_len;
txbuf->totallen = buf->hdrlen + fpdu_len;
txbuf->data = (u8 *)txbuf->mem.va + buf->hdrlen;
@@ -1048,6 +1050,8 @@ static void i40iw_ieq_compl_pfpdu(struct i40iw_puda_rsrc *ieq,
fpdu_len -= buf->datalen;
i40iw_puda_ret_bufpool(ieq, buf);
buf = i40iw_puda_get_listbuf(pbufl);
+ if (!buf)
+ return;
bufoffset = (u16)(buf->data - (u8 *)buf->mem.va);
} while (1);