9 Jun
2015
9 Jun
'15
3:56 p.m.
On Tue, Jun 09, 2015 at 07:18:32PM +0900, Inha Song wrote:
If we use the dev_get_platdata, pdata can be NULL in DT environments. Actually, NULL pointer exception is occurs with error messages like this:
[ 1.226583] Unable to handle kernel NULL pointer dereference at virtual address 00000044 [ 1.467910] [<c02f1e38>] (wm8994_irq_init) from [<c02f1bd4>] (wm8994_i2c_probe+0x684/0x858) [ 1.476241] [<c02f1bd4>] (wm8994_i2c_probe) from [<c0371c78>] (i2c_device_probe+0x11c/0x17c)
In wm8994-core, we already checked wheter platform data is NULL and set the wm8994->pdata to platform data if platform data is not NULL. So, we can use wm8994->pdata instead of platform data.
Signed-off-by: Inha Song ideal.song@samsung.com
Acked-by: Charles Keepax ckeepax@opensource.wolfsonmicro.com
Thanks, Charles