Unverified Commit 6282f122 authored May 14, 2018 by Boris Brezillon Committed by Mark Brown May 17, 2018

spi: ti-qspi: Make sure res_mmap != NULL before dereferencing it



resource_size() is dereferencing the res without checking that it is
not NULL, so we need to do the check before calling resource_size().

Fixes: b95cb394 ("spi: ti-qspi: Implement the spi_mem interface")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

parent e935dba1

drivers/spi/spi-ti-qspi.c

+3 −1

Original line number	Original line	Diff line number	Diff line
	@@ -718,6 +718,8 @@ static int ti_qspi_probe(struct platform_device *pdev)
	"memory mapped resource not required\n");		"memory mapped resource not required\n");
	}		}
	}		}

			if (res_mmap)
	qspi->mmap_size = resource_size(res_mmap);		qspi->mmap_size = resource_size(res_mmap);

	irq = platform_get_irq(pdev, 0);		irq = platform_get_irq(pdev, 0);