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path: root/drivers/input/misc/pcf8574_keypad.c
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2010-11-11Input: pcf_keypad - convert to dev_op_opsDmitry Torokhov
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2010-11-11Input: pcf8574_keypad - fix error handling in pcf8574_kp_probeDan Carpenter
It is not allowed to call input_free_device() after calling input_unregister_device() because input devices are refcounted and unregister will free the device if we were holding he last referenc. The preferred style in input/ is to make input_register_device() the last function in the probe which can fail. That way we don't need to call input_unregister_device(). Also do not need to call input_set_drvdata() as nothing in the driver uses the data. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2010-06-22Merge commit 'v2.6.35-rc3' into for-linusDmitry Torokhov
2010-06-05Input: pcf8574_keypad - fix off by one in pcf8574_kp_irq_handler()Dan Carpenter
If nextstate == ARRAY_SIZE(lp->btncode), then we read one past the end of the array on the next line. This fixes a smatch warning: drivers/input/misc/pcf8574_keypad.c +74 pcf8574_kp_irq_handler(8) error: buffer overflow 'lp->btncode' 17 <= 17 Signed-off-by: Dan Carpenter <error27@gmail.com> Acked-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2010-06-03i2c: Remove all i2c_set_clientdata(client, NULL) in driversWolfram Sang
I2C drivers can use the clientdata-pointer to point to private data. As I2C devices are not really unregistered, but merely detached from their driver, it used to be the drivers obligation to clear this pointer during remove() or a failed probe(). As a couple of drivers forgot to do this, it was agreed that it was cleaner if the i2c-core does this clearance when appropriate, as there is no guarantee for the lifetime of the clientdata-pointer after remove() anyhow. This feature was added to the core with commit e4a7b9b04de15f6b63da5ccdd373ffa3057a3681 to fix the faulty drivers. As there is no need anymore to clear the clientdata-pointer, remove all current occurrences in the drivers to simplify the code and prevent confusion. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Acked-by: Richard Purdie <rpurdie@linux.intel.com> Acked-by: Dmitry Torokhov <dtor@mail.ru> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2010-04-13Input: add PCF8574 I2C keypad input device driverBryan Wu
Signed-off-by: Bryan Wu <cooloney@kernel.org> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>