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staging: unisys: visorinput: no need to track open count
evdev_open_device() and evdev_close_device() (in evdev.c) already track the open count under lock, and will only call visorinput_open() on the first open and visorinput_close() on the last close. So this patch removes the unnessary logic from visorinput, and the now-unused counter from the struct. Signed-off-by: Tim Sell <timothy.sell@unisys.com> Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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1b756c43ce
commit
7eb1f7a09b
1 changed files with 4 additions and 14 deletions
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@ -66,7 +66,6 @@ struct visorinput_devdata {
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struct rw_semaphore lock_visor_dev; /* lock for dev */
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struct input_dev *visorinput_dev;
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bool paused;
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unsigned int opened;
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unsigned int keycode_table_bytes; /* size of following array */
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/* for keyboard devices: visorkbd_keycode[] + visorkbd_ext_keycode[] */
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unsigned char keycode_table[0];
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@ -227,11 +226,8 @@ static int visorinput_open(struct input_dev *visorinput_dev)
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__func__, visorinput_dev);
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return -EINVAL;
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}
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devdata->opened++;
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dev_dbg(&visorinput_dev->dev, "%s opened %d\n", __func__,
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devdata->opened);
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if (devdata->opened == 1)
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visorbus_enable_channel_interrupts(devdata->dev);
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dev_dbg(&visorinput_dev->dev, "%s opened\n", __func__);
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visorbus_enable_channel_interrupts(devdata->dev);
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return 0;
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}
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@ -244,14 +240,8 @@ static void visorinput_close(struct input_dev *visorinput_dev)
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__func__, visorinput_dev);
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return;
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}
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if (devdata->opened) {
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devdata->opened--;
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dev_dbg(&visorinput_dev->dev, "%s closed %d\n", __func__,
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devdata->opened);
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if (devdata->opened == 0)
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visorbus_disable_channel_interrupts(devdata->dev);
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} else
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dev_err(&visorinput_dev->dev, "%s not open\n", __func__);
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dev_dbg(&visorinput_dev->dev, "%s closed\n", __func__);
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visorbus_disable_channel_interrupts(devdata->dev);
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}
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/*
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