From: Mathieu Poirier <mathieu.poirier@linaro.org>
To: stable@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org
Subject: [stable 4.19][PATCH 11/17] mailbox: mailbox-test: fix null pointer if no mmio
Date: Thu, 28 Nov 2019 09:49:56 -0700 [thread overview]
Message-ID: <20191128165002.6234-12-mathieu.poirier@linaro.org> (raw)
In-Reply-To: <20191128165002.6234-1-mathieu.poirier@linaro.org>
From: Fabien Dessenne <fabien.dessenne@st.com>
commit 6899b4f7c99c72968e58e502f96084f74f6e5e86 upstream
Fix null pointer issue if resource_size is called with no ioresource.
Signed-off-by: Ludovic Barre <ludovic.barre@st.com>
Signed-off-by: Fabien Dessenne <fabien.dessenne@st.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
Cc: stable <stable@vger.kernel.org> # 4.19
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
---
drivers/mailbox/mailbox-test.c | 14 ++++++++------
1 file changed, 8 insertions(+), 6 deletions(-)
diff --git a/drivers/mailbox/mailbox-test.c b/drivers/mailbox/mailbox-test.c
index 58bfafc34bc4..129b3656c453 100644
--- a/drivers/mailbox/mailbox-test.c
+++ b/drivers/mailbox/mailbox-test.c
@@ -363,22 +363,24 @@ static int mbox_test_probe(struct platform_device *pdev)
/* It's okay for MMIO to be NULL */
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- size = resource_size(res);
tdev->tx_mmio = devm_ioremap_resource(&pdev->dev, res);
- if (PTR_ERR(tdev->tx_mmio) == -EBUSY)
+ if (PTR_ERR(tdev->tx_mmio) == -EBUSY) {
/* if reserved area in SRAM, try just ioremap */
+ size = resource_size(res);
tdev->tx_mmio = devm_ioremap(&pdev->dev, res->start, size);
- else if (IS_ERR(tdev->tx_mmio))
+ } else if (IS_ERR(tdev->tx_mmio)) {
tdev->tx_mmio = NULL;
+ }
/* If specified, second reg entry is Rx MMIO */
res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
- size = resource_size(res);
tdev->rx_mmio = devm_ioremap_resource(&pdev->dev, res);
- if (PTR_ERR(tdev->rx_mmio) == -EBUSY)
+ if (PTR_ERR(tdev->rx_mmio) == -EBUSY) {
+ size = resource_size(res);
tdev->rx_mmio = devm_ioremap(&pdev->dev, res->start, size);
- else if (IS_ERR(tdev->rx_mmio))
+ } else if (IS_ERR(tdev->rx_mmio)) {
tdev->rx_mmio = tdev->tx_mmio;
+ }
tdev->tx_channel = mbox_test_request_channel(pdev, "tx");
tdev->rx_channel = mbox_test_request_channel(pdev, "rx");
--
2.17.1
next prev parent reply other threads:[~2019-11-28 16:50 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-28 16:49 [stable 4.19][PATCH 00/17] candidates for stable 4.19.y Mathieu Poirier
2019-11-28 16:49 ` [stable 4.19][PATCH 01/17] mailbox: stm32_ipcc: add spinlock to fix channels concurrent access Mathieu Poirier
2019-11-28 16:49 ` [stable 4.19][PATCH 02/17] crypto: stm31/hash - Fix hmac issue more than 256 bytes Mathieu Poirier
2019-11-28 16:49 ` [stable 4.19][PATCH 03/17] media: stm32-dcmi: fix DMA corruption when stopping streaming Mathieu Poirier
2019-11-28 16:49 ` [stable 4.19][PATCH 04/17] media: stm32-dcmi: fix check of pm_runtime_get_sync return value Mathieu Poirier
2019-11-28 16:49 ` [stable 4.19][PATCH 05/17] hwrng: stm32 - fix unbalanced pm_runtime_enable Mathieu Poirier
2019-11-28 16:49 ` [stable 4.19][PATCH 06/17] remoteproc: fix rproc_da_to_va in case of unallocated carveout Mathieu Poirier
2019-12-03 19:43 ` Greg KH
2019-12-04 18:13 ` Mathieu Poirier
2019-11-28 16:49 ` [stable 4.19][PATCH 07/17] clk: stm32mp1: fix HSI divider flag Mathieu Poirier
2019-11-28 16:49 ` [stable 4.19][PATCH 08/17] clk: stm32mp1: fix mcu divider table Mathieu Poirier
2019-11-28 16:49 ` [stable 4.19][PATCH 09/17] clk: stm32mp1: add CLK_SET_RATE_NO_REPARENT to Kernel clocks Mathieu Poirier
2019-11-28 16:49 ` [stable 4.19][PATCH 10/17] clk: stm32mp1: parent clocks update Mathieu Poirier
2019-11-28 16:49 ` Mathieu Poirier [this message]
2019-11-28 16:49 ` [stable 4.19][PATCH 12/17] pinctrl: stm32: fix memory leak issue Mathieu Poirier
2019-11-28 16:49 ` [stable 4.19][PATCH 13/17] ASoC: stm32: i2s: fix dma configuration Mathieu Poirier
2019-11-28 16:49 ` [stable 4.19][PATCH 14/17] ASoC: stm32: i2s: fix 16 bit format support Mathieu Poirier
2019-11-28 16:50 ` [stable 4.19][PATCH 15/17] ASoC: stm32: i2s: fix IRQ clearing Mathieu Poirier
2019-11-28 16:50 ` [stable 4.19][PATCH 16/17] ASoC: stm32: sai: add missing put_device() Mathieu Poirier
2019-11-28 16:50 ` [stable 4.19][PATCH 17/17] dmaengine: stm32-dma: check whether length is aligned on FIFO threshold Mathieu Poirier
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