From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Adrian Hunter , Chris Ball Subject: [PATCH 3.13 120/120] mmc: sdhci-pci: Fix possibility of chip->fixes being null Date: Tue, 11 Feb 2014 11:06:01 -0800 Message-Id: <20140211184827.067308699@linuxfoundation.org> In-Reply-To: <20140211184823.492407127@linuxfoundation.org> References: <20140211184823.492407127@linuxfoundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: 3.13-stable review patch. If anyone has any objections, please let me know. ------------------ From: Adrian Hunter commit 945be38caa287b177b8c17ffaae7754cab6a658f upstream. It is possible for chip->fixes to be null. Check before dereferencing it. Signed-off-by: Adrian Hunter Signed-off-by: Chris Ball Signed-off-by: Greg Kroah-Hartman --- drivers/mmc/host/sdhci-pci.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/drivers/mmc/host/sdhci-pci.c +++ b/drivers/mmc/host/sdhci-pci.c @@ -1466,7 +1466,8 @@ static struct sdhci_pci_slot *sdhci_pci_ * from runtime suspend. If it is not there, don't allow runtime PM. * Note sdhci_pci_add_own_cd() sets slot->cd_gpio to -EINVAL on failure. */ - if (chip->fixes->own_cd_for_runtime_pm && !gpio_is_valid(slot->cd_gpio)) + if (chip->fixes && chip->fixes->own_cd_for_runtime_pm && + !gpio_is_valid(slot->cd_gpio)) chip->allow_runtime_pm = false; return slot;