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Commit 410aee70 authored by Felipe Balbi's avatar Felipe Balbi
Browse files

usb: phy: protect against NULL phy pointers 



In order to decrease the amount of work done
by PHY users, allow NULL phy pointers to be
passed.

Signed-off-by: default avatarFelipe Balbi <balbi@ti.com>
parent 5945f789

include/linux/usb/phy.h

+9 −9
Original line number Diff line number Diff line
@@ -142,7 +142,7 @@ extern void usb_remove_phy(struct usb_phy *); 
/* helpers for direct access thru low-level io interface */

static inline int usb_phy_io_read(struct usb_phy *x, u32 reg)

{

	if (x->io_ops && x->io_ops->read)

	if (x && x->io_ops && x->io_ops->read)

		return x->io_ops->read(x, reg);



	return -EINVAL;
@@ -150,7 +150,7 @@ static inline int usb_phy_io_read(struct usb_phy *x, u32 reg) 


static inline int usb_phy_io_write(struct usb_phy *x, u32 val, u32 reg)

{

	if (x->io_ops && x->io_ops->write)

	if (x && x->io_ops && x->io_ops->write)

		return x->io_ops->write(x, val, reg);



	return -EINVAL;
@@ -159,7 +159,7 @@ static inline int usb_phy_io_write(struct usb_phy *x, u32 val, u32 reg) 
static inline int

usb_phy_init(struct usb_phy *x)

{

	if (x->init)

	if (x && x->init)

		return x->init(x);



	return 0;
@@ -168,14 +168,14 @@ usb_phy_init(struct usb_phy *x) 
static inline void

usb_phy_shutdown(struct usb_phy *x)

{

	if (x->shutdown)

	if (x && x->shutdown)

		x->shutdown(x);

}



static inline int

usb_phy_vbus_on(struct usb_phy *x)

{

	if (!x->set_vbus)

	if (!x || !x->set_vbus)

		return 0;



	return x->set_vbus(x, true);
@@ -184,7 +184,7 @@ usb_phy_vbus_on(struct usb_phy *x) 
static inline int

usb_phy_vbus_off(struct usb_phy *x)

{

	if (!x->set_vbus)

	if (!x || !x->set_vbus)

		return 0;



	return x->set_vbus(x, false);
@@ -258,7 +258,7 @@ usb_phy_set_power(struct usb_phy *x, unsigned mA) 
static inline int

usb_phy_set_suspend(struct usb_phy *x, int suspend)

{

	if (x->set_suspend != NULL)

	if (x && x->set_suspend != NULL)

		return x->set_suspend(x, suspend);

	else

		return 0;
@@ -267,7 +267,7 @@ usb_phy_set_suspend(struct usb_phy *x, int suspend) 
static inline int

usb_phy_notify_connect(struct usb_phy *x, enum usb_device_speed speed)

{

	if (x->notify_connect)

	if (x && x->notify_connect)

		return x->notify_connect(x, speed);

	else

		return 0;
@@ -276,7 +276,7 @@ usb_phy_notify_connect(struct usb_phy *x, enum usb_device_speed speed) 
static inline int

usb_phy_notify_disconnect(struct usb_phy *x, enum usb_device_speed speed)

{

	if (x->notify_disconnect)

	if (x && x->notify_disconnect)

		return x->notify_disconnect(x, speed);

	else

		return 0;