input: raspberrypi-ts: Release firmware handle when not needed

[ Upstream commit 8b732b899b84b7701c501f2c87f92e399f1549e1 ]

There is no use for the firmware interface after getting the touch
buffer address, so release it.

Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Stable-dep-of: 5bca3688bdbc ("Input: raspberrypi-ts - fix refcount leak in rpi_ts_probe")
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/input/touchscreen/raspberrypi-ts.c b/drivers/input/touchscreen/raspberrypi-ts.c
index 69881265d12187024c6c6043733ea5323e79bbce..4740a7c412364f83f94f791f18a05e5bcbf1cb7d 100644 (file)
--- a/drivers/input/touchscreen/raspberrypi-ts.c
+++ b/drivers/input/touchscreen/raspberrypi-ts.c
@@ -164,7 +164,7 @@ static int rpi_ts_probe(struct platform_device *pdev)
        touchbuf = (u32)ts->fw_regs_phys;
        error = rpi_firmware_property(fw, RPI_FIRMWARE_FRAMEBUFFER_SET_TOUCHBUF,
                                      &touchbuf, sizeof(touchbuf));
-
+       rpi_firmware_put(fw);
        if (error || touchbuf != 0) {
                dev_warn(dev, "Failed to set touchbuf, %d\n", error);
                return error;