[media] em28xx: do not set PCTV 290e LNA handler if fe attach fail

It was a bug that could cause oops if demodulator attach was
failed.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 13 insertions, 11 deletions

diff --git a/drivers/media/usb/em28xx/em28xx-dvb.c b/drivers/media/usb/em28xx/em28xx-dvb.c
index 0ca3e05992b..1662b70435b 100644
--- a/drivers/media/usb/em28xx/em28xx-dvb.c
+++ b/drivers/media/usb/em28xx/em28xx-dvb.c
@@ -1002,20 +1002,22 @@ static int em28xx_dvb_init(struct em28xx *dev)
                                 result = -EINVAL;
                                 goto out_free;
                         }
-                }
 
 #ifdef CONFIG_GPIOLIB
-                /* enable LNA for DVB-T, DVB-T2 and DVB-C */
-                result = gpio_request_one(dvb->lna_gpio, GPIOF_OUT_INIT_LOW,
-                                NULL);
-                if (result)
-                        em28xx_errdev("gpio request failed %d\n", result);
-                else
-                        gpio_free(dvb->lna_gpio);
-
-                result = 0; /* continue even set LNA fails */
+                        /* enable LNA for DVB-T, DVB-T2 and DVB-C */
+                        result = gpio_request_one(dvb->lna_gpio,
+                                        GPIOF_OUT_INIT_LOW, NULL);
+                        if (result)
+                                em28xx_errdev("gpio request failed %d\n",
+                                                result);
+                        else
+                                gpio_free(dvb->lna_gpio);
+
+                        result = 0; /* continue even set LNA fails */
 #endif
-                dvb->fe[0]->ops.set_lna = em28xx_pctv_290e_set_lna;
+                        dvb->fe[0]->ops.set_lna = em28xx_pctv_290e_set_lna;
+                }
+
                 break;
         case EM2884_BOARD_HAUPPAUGE_WINTV_HVR_930C:
         {