mfd: Add devices platform data when the cell data size is not 0
When the cell data_size is 0, the resulting platform_data pointer will be
set to ZERO_SIZE_PTR. That could be misleading for device drivers running
a NULL check on thei platform_data pointer before dereferencing it.
Signed-off-by: Brian Harring <ferringb@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
diff --git a/drivers/mfd/mfd-core.c b/drivers/mfd/mfd-core.c
index d1c8605..ec99f68 100644
--- a/drivers/mfd/mfd-core.c
+++ b/drivers/mfd/mfd-core.c
@@ -38,10 +38,12 @@
pdev->dev.parent = parent;
platform_set_drvdata(pdev, cell->driver_data);
- ret = platform_device_add_data(pdev,
- cell->platform_data, cell->data_size);
- if (ret)
- goto fail_res;
+ if (cell->data_size) {
+ ret = platform_device_add_data(pdev,
+ cell->platform_data, cell->data_size);
+ if (ret)
+ goto fail_res;
+ }
for (r = 0; r < cell->num_resources; r++) {
res[r].name = cell->resources[r].name;