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Date: Wed, 19 May 2010 12:26:12 +0200
From: Daniel Mack <daniel@...aq.de>
To: linux-kernel@...r.kernel.org
Cc: Daniel Mack <daniel@...aq.de>,
Mauro Carvalho Chehab <mchehab@...radead.org>,
Jiri Slaby <jslaby@...e.cz>, Dmitry Torokhov <dtor@...l.ru>,
Devin Heitmueller <dheitmueller@...nellabs.com>,
linux-media@...r.kernel.org
Subject: [PATCH] drivers/media/dvb/dvb-usb/dib0700: fix return values
Propagte correct error values instead of returning -1 which just means
-EPERM ("Permission denied")
While at it, also fix some coding style violations.
Signed-off-by: Daniel Mack <daniel@...aq.de>
Cc: Mauro Carvalho Chehab <mchehab@...radead.org>
Cc: Jiri Slaby <jslaby@...e.cz>
Cc: Dmitry Torokhov <dtor@...l.ru>
Cc: Devin Heitmueller <dheitmueller@...nellabs.com>
Cc: linux-media@...r.kernel.org
---
drivers/media/dvb/dvb-usb/dib0700_core.c | 47 ++++++++++++++---------------
1 files changed, 23 insertions(+), 24 deletions(-)
diff --git a/drivers/media/dvb/dvb-usb/dib0700_core.c b/drivers/media/dvb/dvb-usb/dib0700_core.c
index d5e2c23..c73da6b 100644
--- a/drivers/media/dvb/dvb-usb/dib0700_core.c
+++ b/drivers/media/dvb/dvb-usb/dib0700_core.c
@@ -111,23 +111,24 @@ int dib0700_set_gpio(struct dvb_usb_device *d, enum dib07x0_gpios gpio, u8 gpio_
static int dib0700_set_usb_xfer_len(struct dvb_usb_device *d, u16 nb_ts_packets)
{
- struct dib0700_state *st = d->priv;
- u8 b[3];
- int ret;
-
- if (st->fw_version >= 0x10201) {
- b[0] = REQUEST_SET_USB_XFER_LEN;
- b[1] = (nb_ts_packets >> 8)&0xff;
- b[2] = nb_ts_packets & 0xff;
-
- deb_info("set the USB xfer len to %i Ts packet\n", nb_ts_packets);
-
- ret = dib0700_ctrl_wr(d, b, 3);
- } else {
- deb_info("this firmware does not allow to change the USB xfer len\n");
- ret = -EIO;
- }
- return ret;
+ struct dib0700_state *st = d->priv;
+ u8 b[3];
+ int ret;
+
+ if (st->fw_version >= 0x10201) {
+ b[0] = REQUEST_SET_USB_XFER_LEN;
+ b[1] = (nb_ts_packets >> 8)&0xff;
+ b[2] = nb_ts_packets & 0xff;
+
+ deb_info("set the USB xfer len to %i Ts packet\n", nb_ts_packets);
+
+ ret = dib0700_ctrl_wr(d, b, 3);
+ } else {
+ deb_info("this firmware does not allow to change the USB xfer len\n");
+ ret = -EIO;
+ }
+
+ return ret;
}
/*
@@ -642,7 +643,7 @@ int dib0700_rc_setup(struct dvb_usb_device *d)
i = dib0700_ctrl_wr(d, rc_setup, 3);
if (i<0) {
err("ir protocol setup failed");
- return -1;
+ return i;
}
if (st->fw_version < 0x10200)
@@ -652,7 +653,7 @@ int dib0700_rc_setup(struct dvb_usb_device *d)
purb = usb_alloc_urb(0, GFP_KERNEL);
if (purb == NULL) {
err("rc usb alloc urb failed\n");
- return -1;
+ return -ENOMEM;
}
purb->transfer_buffer = usb_buffer_alloc(d->udev, RC_MSG_SIZE_V1_20,
@@ -661,7 +662,7 @@ int dib0700_rc_setup(struct dvb_usb_device *d)
if (purb->transfer_buffer == NULL) {
err("rc usb_buffer_alloc() failed\n");
usb_free_urb(purb);
- return -1;
+ return -ENOMEM;
}
purb->status = -EINPROGRESS;
@@ -670,12 +671,10 @@ int dib0700_rc_setup(struct dvb_usb_device *d)
dib0700_rc_urb_completion, d);
ret = usb_submit_urb(purb, GFP_ATOMIC);
- if (ret != 0) {
+ if (ret != 0)
err("rc submit urb failed\n");
- return -1;
- }
- return 0;
+ return ret;
}
static int dib0700_probe(struct usb_interface *intf,
--
1.7.1
--
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