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Input: atmel_mxt_ts - suspend/resume causes panic if input_dev fails to init 

input_dev may be NULL if mxt_initialize_input_device fails. But pm ops is
still available and suspend/resume assume
input_dev is not NULL. To fix this issue, we add a check if (!input_dev).

Signed-off-by: Pan Xinhui <xinhuix.pan@intel.com>
Signed-off-by: Nick Dyer <nick.dyer@itdev.co.uk>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Pan Xinhui 2015-08-04 16:53:04 -07:00 committed by Dmitry Torokhov
parent 146c6a662f
commit 50fabb02c7
1 changed files with 6 additions and 0 deletions
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6
drivers/input/touchscreen/atmel_mxt_ts.c
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@ -2644,6 +2644,9 @@ static int __maybe_unused mxt_suspend(struct device *dev)
struct mxt_data *data = i2c_get_clientdata(client);
struct input_dev *input_dev = data->input_dev;
if (!input_dev)
return 0;
mutex_lock(&input_dev->mutex);
if (input_dev->users)
@ -2660,6 +2663,9 @@ static int __maybe_unused mxt_resume(struct device *dev)
struct mxt_data *data = i2c_get_clientdata(client);
struct input_dev *input_dev = data->input_dev;
if (!input_dev)
return 0;
mutex_lock(&input_dev->mutex);
if (input_dev->users)