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

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[ Upstream commit 3b8ddff780b7d12e99ae39177f84b9003097777a ]

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>
This commit is contained in:
Nicolas Saenz Julienne 2021-01-18 13:32:41 +01:00 committed by Greg Kroah-Hartman
parent de85be00a8
commit ce6c42f0b6
1 changed files with 1 additions and 1 deletions
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2
drivers/input/touchscreen/raspberrypi-ts.c
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@ -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;