From: Miaoqian Lin linmq006@gmail.com
[ Upstream commit 5bca3688bdbc3b58a2894b8671a8e2378efe28bd ]
rpi_firmware_get() take reference, we need to release it in error paths as well. Use devm_rpi_firmware_get() helper to handling the resources. Also remove the existing rpi_firmware_put().
Fixes: 0b9f28fed3f7 ("Input: add official Raspberry Pi's touchscreen driver") Fixes: 3b8ddff780b7 ("input: raspberrypi-ts: Release firmware handle when not needed") Signed-off-by: Miaoqian Lin linmq006@gmail.com Reviewed-by: Mattijs Korpershoek mkorpershoek@baylibre.com Link: https://lore.kernel.org/r/20221223074657.810346-1-linmq006@gmail.com Signed-off-by: Dmitry Torokhov dmitry.torokhov@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/input/touchscreen/raspberrypi-ts.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/input/touchscreen/raspberrypi-ts.c b/drivers/input/touchscreen/raspberrypi-ts.c index 5000f5fd9ec38..45c575df994e0 100644 --- a/drivers/input/touchscreen/raspberrypi-ts.c +++ b/drivers/input/touchscreen/raspberrypi-ts.c @@ -134,7 +134,7 @@ static int rpi_ts_probe(struct platform_device *pdev) return -ENOENT; }
- fw = rpi_firmware_get(fw_node); + fw = devm_rpi_firmware_get(&pdev->dev, fw_node); of_node_put(fw_node); if (!fw) return -EPROBE_DEFER; @@ -160,7 +160,6 @@ 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;