[RFT 4/7] firmware: add helper to check to see if fw cache is setup

Luis R. Rodriguez
2018-02-27T23:20:58Z

Add a helper to check if the firmware cache is already setup for a device.
This will be used later.

Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org>
---
drivers/base/firmware_loader.c | 14 ++++++++++++--
1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/drivers/base/firmware_loader.c b/drivers/base/firmware_loader.c
index a385622bf3e1..5f3d44d0bfe0 100644
--- a/drivers/base/firmware_loader.c
+++ b/drivers/base/firmware_loader.c
@@ -396,13 +396,23 @@ static struct fw_name_devm *fw_find_devm_name(struct device *dev,
return fwn;
}

-/* add firmware name into devres list */
-static int fw_add_devm_name(struct device *dev, const char *name)
+static bool fw_cache_is_setup(struct device *dev, const char *name)
{
struct fw_name_devm *fwn;

fwn = fw_find_devm_name(dev, name);
if (fwn)
+ return true;
+
+ return false;
+}
+
+/* add firmware name into devres list */
+static int fw_add_devm_name(struct device *dev, const char *name)
+{
+ struct fw_name_devm *fwn;
+
+ if (fw_cache_is_setup(dev, name))
return 0;

fwn = devres_alloc(fw_name_devm_release, sizeof(struct fw_name_devm),
--
2.16.2