staging: fsl-mc: Fixed WARN_ON() in fsl_mc_resource_pool_remove_device

Check that resource is not NULL before de-referencing it.

Signed-off-by: J. German Rivera <German.Rivera@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/fsl-mc/bus/mc-allocator.c b/drivers/staging/fsl-mc/bus/mc-allocator.c
index a45293bfce5ac6f9ff830b3c126bd00d4a9b537e..88d1857521a530c07e50c626b91a67f0dc86f315 100644 (file)
--- a/drivers/staging/fsl-mc/bus/mc-allocator.c
+++ b/drivers/staging/fsl-mc/bus/mc-allocator.c
@@ -111,7 +111,7 @@ static int __must_check fsl_mc_resource_pool_remove_device(struct fsl_mc_device
                goto out;
 
        resource = mc_dev->resource;
-       if (WARN_ON(resource->data != mc_dev))
+       if (WARN_ON(!resource || resource->data != mc_dev))
                goto out;
 
        mc_bus_dev = to_fsl_mc_device(mc_dev->dev.parent);