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Commit da5c1381 authored by Mustafa Ismail's avatar Mustafa Ismail Committed by Doug Ledford
Browse files

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: default avatarMustafa Ismail <mustafa.ismail@intel.com>
Signed-off-by: default avatarShiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
parent 8c1ea86d

drivers/infiniband/hw/i40iw/i40iw_puda.c

+4 −0
Original line number Diff line number Diff line
@@ -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);