From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mms1.broadcom.com ([216.31.210.17]:4378 "EHLO mms1.broadcom.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759252Ab3JONpN (ORCPT ); Tue, 15 Oct 2013 09:45:13 -0400 From: "Arend van Spriel" To: "John W. Linville" cc: linux-wireless , "Arend van Spriel" Subject: [PATCH 08/12] brcmfmac: verify result of brcmf_sdio_addrprep() calls Date: Tue, 15 Oct 2013 15:44:53 +0200 Message-ID: <1381844697-24881-9-git-send-email-arend@broadcom.com> (sfid-20131015_154526_828370_3B44EA94) In-Reply-To: <1381844697-24881-1-git-send-email-arend@broadcom.com> References: <1381844697-24881-1-git-send-email-arend@broadcom.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-wireless-owner@vger.kernel.org List-ID: Not all calls to the function brcmf_sdio_addrprep() check the return value, but it may fail so better verify it. Reviewed-by: Franky Lin Reviewed-by: Hante Meuleman Reviewed-by: Pieter-Paul Giesberts Signed-off-by: Arend van Spriel --- drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-) diff --git a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c index da02816..c88e267 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c @@ -238,7 +238,9 @@ brcmf_sdio_regrw_helper(struct brcmf_sdio_dev *sdiodev, u32 addr, func_num = SDIO_FUNC_1; reg_size = 4; - brcmf_sdio_addrprep(sdiodev, reg_size, &addr); + ret = brcmf_sdio_addrprep(sdiodev, reg_size, &addr); + if (ret) + goto done; } do { @@ -254,6 +256,7 @@ brcmf_sdio_regrw_helper(struct brcmf_sdio_dev *sdiodev, u32 addr, func_num, addr, data, 4); } while (ret != 0 && retry++ < SDIOH_API_ACCESS_RETRY_LIMIT); +done: if (ret != 0) brcmf_err("failed with %d\n", ret); @@ -605,9 +608,10 @@ brcmf_sdcard_send_buf(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn, memcpy(mypkt->data, buf, nbytes); width = (flags & SDIO_REQ_4BYTE) ? 4 : 2; - brcmf_sdio_addrprep(sdiodev, width, &addr); + err = brcmf_sdio_addrprep(sdiodev, width, &addr); - err = brcmf_sdio_buffrw(sdiodev, fn, true, addr, mypkt); + if (!err) + err = brcmf_sdio_buffrw(sdiodev, fn, true, addr, mypkt); brcmu_pkt_buf_free_skb(mypkt); return err; @@ -619,12 +623,15 @@ brcmf_sdcard_send_pkt(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn, uint flags, struct sk_buff_head *pktq) { uint width; + int err; brcmf_dbg(SDIO, "fun = %d, addr = 0x%x, size = %d\n", fn, addr, pktq->qlen); width = (flags & SDIO_REQ_4BYTE) ? 4 : 2; - brcmf_sdio_addrprep(sdiodev, width, &addr); + err = brcmf_sdio_addrprep(sdiodev, width, &addr); + if (err) + return err; if (pktq->qlen == 1) return brcmf_sdio_buffrw(sdiodev, fn, true, addr, pktq->next); -- 1.7.10.4