diff options
| author | Han Xu <han.xu@nxp.com> | 2016-01-07 13:21:02 -0600 |
|---|---|---|
| committer | Nitin Garg <nitin.garg@nxp.com> | 2016-01-14 11:03:07 -0600 |
| commit | 5dbd548b8c537c25ab3a1095fd63b9abe50f33b6 (patch) | |
| tree | 201334ba7c96d092e603f62b3566f322c4a9655e /drivers/mtd/spi-nor | |
| parent | 918e21fd7940adfe1ed5a191dabe7d3fa4bad9fd (diff) | |
MLK-12153: mtd: fsl-quadspi: fix the QSPI dereference null return value found by coverity
check the return value to avoid the dereference null return value when
parsing device tree.
Signed-off-by: Han Xu <han.xu@nxp.com>
Diffstat (limited to 'drivers/mtd/spi-nor')
| -rw-r--r-- | drivers/mtd/spi-nor/fsl-quadspi.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/mtd/spi-nor/fsl-quadspi.c b/drivers/mtd/spi-nor/fsl-quadspi.c index e6cd64193a54..ccda2961bc5d 100644 --- a/drivers/mtd/spi-nor/fsl-quadspi.c +++ b/drivers/mtd/spi-nor/fsl-quadspi.c @@ -1041,12 +1041,21 @@ static int fsl_qspi_probe(struct platform_device *pdev) /* find the resources */ res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "QuadSPI"); + if (!res) { + dev_err(dev, "QuadSPI get resource IORESOURCE_MEM failed\n"); + return -ENODEV; + } q->iobase = devm_ioremap_resource(dev, res); if (IS_ERR(q->iobase)) return PTR_ERR(q->iobase); res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "QuadSPI-memory"); + if (!res) { + dev_err(dev, + "QuadSPI-memory get resource IORESOURCE_MEM failed\n"); + return -ENODEV; + } if (!devm_request_mem_region(dev, res->start, resource_size(res), res->name)) { dev_err(dev, "can't request region for resource %pR\n", res); |