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The cs40l50_upload_owt() function allocates memory via kmalloc()
without checking for allocation failure, which could lead to a
NULL pointer dereference.
Return -ENOMEM in case allocation fails.
Signed-off-by: Yunshui Jiang <jiangyunshui@kylinos.cn>
Fixes: c38fe1bb5d21 ("Input: cs40l50 - Add support for the CS40L50 haptic driver")
Link: https://lore.kernel.org/r/20250704024010.2353841-1-jiangyunshui@kylinos.cn
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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In cs40l50_add(), the work_data is a local variable and the work_data.work
should initialize with INIT_WORK_ONSTACK() instead of INIT_WORK().
Small error in cs40l50_erase() also fixed in this commit.
Fixes: c38fe1bb5d21 ("Input: cs40l50 - Add support for the CS40L50 haptic driver")
Signed-off-by: Yuan Can <yuancan@huawei.com>
Reviewed-by: James Ogletree <jogletre@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20241106013549.78142-1-yuancan@huawei.com
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Introduce support for Cirrus Logic Device CS40L50: a
haptic driver with waveform memory, integrated DSP,
and closed-loop algorithms.
The input driver provides the interface for control of
haptic effects through the device.
Signed-off-by: James Ogletree <jogletre@opensource.cirrus.com>
Reviewed-by: Jeff LaBundy <jeff@labundy.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Link: https://lore.kernel.org/r/20240620161745.2312359-5-jogletre@opensource.cirrus.com
Signed-off-by: Lee Jones <lee@kernel.org>
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