usb: phy: fix return value check of usb_get_phy
usb_get_phy will return -ENODEV if it's not able to find the phy. Hence
fixed all the callers of usb_get_phy to check for this error condition
instead of relying on a non-zero value as success condition.
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
diff --git a/drivers/usb/gadget/pxa27x_udc.c b/drivers/usb/gadget/pxa27x_udc.c
index 8f744aa..644b430 100644
--- a/drivers/usb/gadget/pxa27x_udc.c
+++ b/drivers/usb/gadget/pxa27x_udc.c
@@ -13,6 +13,7 @@
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/errno.h>
+#include <linux/err.h>
#include <linux/platform_device.h>
#include <linux/delay.h>
#include <linux/list.h>
@@ -1573,7 +1574,7 @@
int put_on;
put_on = ((udc->pullup_on) && (udc->driver));
- put_on &= ((udc->vbus_sensed) || (!udc->transceiver));
+ put_on &= ((udc->vbus_sensed) || (IS_ERR_OR_NULL(udc->transceiver)));
return put_on;
}
@@ -1594,7 +1595,7 @@
int put_off;
put_off = ((!udc->pullup_on) || (!udc->driver));
- put_off |= ((!udc->vbus_sensed) && (udc->transceiver));
+ put_off |= ((!udc->vbus_sensed) && (!IS_ERR_OR_NULL(udc->transceiver)));
return put_off;
}
@@ -1665,7 +1666,7 @@
struct pxa_udc *udc;
udc = to_gadget_udc(_gadget);
- if (udc->transceiver)
+ if (!IS_ERR_OR_NULL(udc->transceiver))
return usb_phy_set_power(udc->transceiver, mA);
return -EOPNOTSUPP;
}
@@ -1834,7 +1835,7 @@
dev_dbg(udc->dev, "registered gadget driver '%s'\n",
driver->driver.name);
- if (udc->transceiver) {
+ if (!IS_ERR_OR_NULL(udc->transceiver)) {
retval = otg_set_peripheral(udc->transceiver->otg,
&udc->gadget);
if (retval) {
@@ -1908,7 +1909,7 @@
dev_info(udc->dev, "unregistered gadget driver '%s'\n",
driver->driver.name);
- if (udc->transceiver)
+ if (!IS_ERR_OR_NULL(udc->transceiver))
return otg_set_peripheral(udc->transceiver->otg, NULL);
return 0;
}