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9026c0bf23
control_message() might be called with pao = NULL.
Here indicates control_message() as sample.
(B) static void control_message(struct hpi_adapter_obj *pao, ...)
{ ^^^
struct hpi_hw_obj *phw = pao->priv;
... ^^^
}
(A) void _HPI_6205(struct hpi_adapter_obj *pao, ...)
{ ^^^
...
case HPI_OBJ_CONTROL:
(B) control_message(pao, phm, phr);
break; ^^^
...
}
void HPI_6205(...)
{
...
(A) _HPI_6205(NULL, phm, phr);
... ^^^^
}
Therefore, We will get too many warning via cppcheck, like below
sound/pci/asihpi/hpi6205.c:238:27: warning: Possible null pointer dereference: pao [nullPointer]
struct hpi_hw_obj *phw = pao->priv;
^
sound/pci/asihpi/hpi6205.c:433:13: note: Calling function '_HPI_6205', 1st argument 'NULL' value is 0
_HPI_6205(NULL, phm, phr);
^
sound/pci/asihpi/hpi6205.c:401:20: note: Calling function 'control_message', 1st argument 'pao' value is 0
control_message(pao, phm, phr);
^
Set phr->error like many functions doing, and don't call _HPI_6205()
with NULL.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87ttypeaqz.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
|
||
|---|---|---|
| .. | ||
| asihpi.c | ||
| hpi_internal.h | ||
| hpi_version.h | ||
| hpi.h | ||
| hpi6000.c | ||
| hpi6000.h | ||
| hpi6205.c | ||
| hpi6205.h | ||
| hpicmn.c | ||
| hpicmn.h | ||
| hpidebug.c | ||
| hpidebug.h | ||
| hpidspcd.c | ||
| hpidspcd.h | ||
| hpifunc.c | ||
| hpimsginit.c | ||
| hpimsginit.h | ||
| hpimsgx.c | ||
| hpimsgx.h | ||
| hpioctl.c | ||
| hpioctl.h | ||
| hpios.c | ||
| hpios.h | ||
| hpipcida.h | ||
| Makefile | ||