staging: Fix some incorrect use of positive error codes.

Use -E... instead of just E... in a few places where negative error
codes are expected by a functions callers.  These were found by grepping
with coccinelle & then inspecting by hand to determine which were bugs.

The staging/cxt1e1 driver appears to intentionally use positive E...
error codes in some places, and negative -E... error codes in others,
making it hard to know which is intended where - very likely I missed
some problems in that driver.
Signed-off-by: Ralph Loader <suckfish@ihug.co.nz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/ath6kl/os/linux/ioctl.c

@@ -440,7 +440,7 @@ ar6000_ioctl_set_rssi_threshold(struct net_device *dev, struct ifreq *rq)
             if (ar->rssi_map[j+1].rssi < ar->rssi_map[j].rssi) {
                 SWAP_THOLD(ar->rssi_map[j+1], ar->rssi_map[j]);
             } else if (ar->rssi_map[j+1].rssi == ar->rssi_map[j].rssi) {
-                return EFAULT;
+                return -EFAULT;
             }
         }
     }
@@ -449,7 +449,7 @@ ar6000_ioctl_set_rssi_threshold(struct net_device *dev, struct ifreq *rq)
             if (ar->rssi_map[j+1].rssi < ar->rssi_map[j].rssi) {
                 SWAP_THOLD(ar->rssi_map[j+1], ar->rssi_map[j]);
             } else if (ar->rssi_map[j+1].rssi == ar->rssi_map[j].rssi) {
-                return EFAULT;
+                return -EFAULT;
             }
         }
     }
@@ -2870,7 +2870,7 @@ int ar6000_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
                                              gpio_output_set_cmd.enable_mask,
                                              gpio_output_set_cmd.disable_mask);
                 if (ret != A_OK) {
-                    ret = EIO;
+                    ret = -EIO;
                 }
             }
             up(&ar->arSem);
@@ -2950,7 +2950,7 @@ int ar6000_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
                                                gpio_register_cmd.gpioreg_id,
                                                gpio_register_cmd.value);
                 if (ret != A_OK) {
-                    ret = EIO;
+                    ret = -EIO;
                 }
 
                 /* Wait for acknowledgement from Target */
@@ -3041,7 +3041,7 @@ int ar6000_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
             } else {
                 ret = ar6000_gpio_intr_ack(dev, gpio_intr_ack_cmd.ack_mask);
                 if (ret != A_OK) {
-                    ret = EIO;
+                    ret = -EIO;
                 }
             }
             up(&ar->arSem);

drivers/staging/brcm80211/brcmfmac/wl_iw.c

@@ -1368,7 +1368,7 @@ wl_iw_iscan_set_scan(struct net_device *dev,
 	if (g_scan_specified_ssid) {
 		WL_TRACE("%s Specific SCAN already running ignoring BC scan\n",
 			 __func__);
-		return EBUSY;
+		return -EBUSY;
 	}
 
 	memset(&ssid, 0, sizeof(ssid));

drivers/staging/cxt1e1/linux.c

@@ -548,7 +548,7 @@ do_set_port (struct net_device * ndev, void *data)
         return -EINVAL;             /* get card info */
 
     if (pp.portnum >= ci->max_port) /* sanity check */
-        return ENXIO;
+        return -ENXIO;
 
     memcpy (&ci->port[pp.portnum].p, &pp, sizeof (struct sbecom_port_param));
     return mkret (c4_set_port (ci, pp.portnum));

drivers/staging/westbridge/astoria/device/cyasdevice.c

@@ -389,7 +389,7 @@ EXPORT_SYMBOL(cyasdevice_gethaltag);
 static int __init cyasdevice_init(void)
 {
 	if (cyasdevice_initialize() != 0)
-		return ENODEV;
+		return -ENODEV;
 
 	return 0;
 }