Messages in this thread Patch in this message | ![/](/images/icornerl.gif) | | From | Miaoqian Lin <> | Subject | [PATCH] bus: fsl-mc: Check the platform_get_resource() return value | Date | Mon, 4 Apr 2022 14:24:26 +0000 |
| |
platform_get_resource() may fail and return NULL, so check it's value before using it.
Fixes: 6305166c8771 ("bus: fsl-mc: Add ACPI support for fsl-mc") Signed-off-by: Miaoqian Lin <linmq006@gmail.com> --- drivers/bus/fsl-mc/fsl-mc-bus.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/bus/fsl-mc/fsl-mc-bus.c b/drivers/bus/fsl-mc/fsl-mc-bus.c index 8fd4a356a86e..ab520b4ce885 100644 --- a/drivers/bus/fsl-mc/fsl-mc-bus.c +++ b/drivers/bus/fsl-mc/fsl-mc-bus.c @@ -1168,6 +1168,9 @@ static int fsl_mc_bus_probe(struct platform_device *pdev) * Get physical address of MC portal for the root DPRC: */ plat_res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!plat_res) + return -EINVAL; + mc_portal_phys_addr = plat_res->start; mc_portal_size = resource_size(plat_res); mc_portal_base_phys_addr = mc_portal_phys_addr & ~0x3ffffff; -- 2.17.1
| ![\](/images/icornerr.gif) |