[PATCH v3 10/12] staging: fsl-mc: Fixed WARN_ON() in fsl_mc_resource_pool_remove_device

From: J. German Rivera
Date: Sat Oct 17 2015 - 12:36:05 EST


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

Signed-off-by: J. German Rivera <German.Rivera@xxxxxxxxxxxxx>
---
CHANGE HISTORY

Changes in v3:
- Added missing signed-off-by

Changes in v2: none

drivers/staging/fsl-mc/bus/mc-allocator.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/fsl-mc/bus/mc-allocator.c b/drivers/staging/fsl-mc/bus/mc-allocator.c
index a45293b..88d1857 100644
--- 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);
--
2.3.3

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