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39 lines
1.4 KiB
Diff
39 lines
1.4 KiB
Diff
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From 399efd68e115b6548fe943a7a9fbf04753970e61 Mon Sep 17 00:00:00 2001
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From: Simon Kagstrom <simon.kagstrom@gmail.com>
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Date: Wed, 13 Aug 2008 11:27:11 +0100
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Subject: [PATCH] lis302dl-allow-unloading-module.patch
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This patch fixes module unloading for the accelerometer (actually module
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loading failed before). The two problems were that the interrupt was not
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unregistered, and that the device was left in a "strange" state.
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Signed-off-by: Simon Kagstrom <simon.kagstrom@gmail.com>
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---
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drivers/input/misc/lis302dl.c | 6 +++++-
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1 files changed, 5 insertions(+), 1 deletions(-)
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diff --git a/drivers/input/misc/lis302dl.c b/drivers/input/misc/lis302dl.c
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index de8478d..b97cae7 100644
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--- a/drivers/input/misc/lis302dl.c
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+++ b/drivers/input/misc/lis302dl.c
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@@ -462,11 +462,15 @@ static int __devexit lis302dl_remove(struct spi_device *spi)
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struct lis302dl_info *lis = dev_get_drvdata(&spi->dev);
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unsigned long flags;
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- /* power down the device */
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+ /* Reset and power down the device */
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local_save_flags(flags);
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+ reg_write(lis, LIS302DL_REG_CTRL3, 0x00);
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+ reg_write(lis, LIS302DL_REG_CTRL2, 0x00);
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reg_write(lis, LIS302DL_REG_CTRL1, 0x00);
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local_irq_restore(flags);
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+ /* Cleanup resources */
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+ free_irq(lis->spi_dev->irq, lis);
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sysfs_remove_group(&spi->dev.kobj, &lis302dl_attr_group);
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input_unregister_device(lis->input_dev);
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if (lis->input_dev)
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--
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1.5.6.5
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