media: dvb_ca_en50221: Fixed style issues on the whole file

- Running "checkpatch.pl -strict -f ..." gave more checks to fix.
  * Blank lines aren't necessary after an open brace '{'
  * Comparison to NULL written as "!<var>"
  * CHECK: Blank lines aren't necessary before a close brace '}'

Signed-off-by: Jasmin Jessich <jasmin@anw.at>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

diff --git a/drivers/media/dvb-core/dvb_ca_en50221.c b/drivers/media/dvb-core/dvb_ca_en50221.c
index 24e2b0c86ada4136567fc3af9b2712b3edb09e24..fa5f5efa657cc30246dddab146c9d6af502a26c3 100644 (file)
--- a/drivers/media/dvb-core/dvb_ca_en50221.c
+++ b/drivers/media/dvb-core/dvb_ca_en50221.c
@@ -89,7 +89,6 @@ MODULE_PARM_DESC(cam_debug, "enable verbose debug messages");
 
 /* Information on a CA slot */
 struct dvb_ca_slot {
-
        /* current state of the CAM */
        int slot_state;
 
@@ -548,7 +547,7 @@ static int dvb_ca_en50221_parse_attributes(struct dvb_ca_private *ca, int slot)
 
        /* check it contains the correct DVB string */
        dvb_str = findstr((char *)tuple, tuple_length, "DVB_CI_V", 8);
-       if (dvb_str == NULL)
+       if (!dvb_str)
                return -EINVAL;
        if (tuple_length < ((dvb_str - (char *)tuple) + 12))
                return -EINVAL;
@@ -640,7 +639,6 @@ static int dvb_ca_en50221_set_configoption(struct dvb_ca_private *ca, int slot)
 
        /* fine! */
        return 0;
-
 }
 
 
@@ -670,7 +668,7 @@ static int dvb_ca_en50221_read_data(struct dvb_ca_private *ca, int slot,
        dprintk("%s\n", __func__);
 
        /* check if we have space for a link buf in the rx_buffer */
-       if (ebuf == NULL) {
+       if (!ebuf) {
                int buf_free;
 
                if (!sl->rx_buffer.data) {
@@ -688,7 +686,7 @@ static int dvb_ca_en50221_read_data(struct dvb_ca_private *ca, int slot,
 
        if (ca->pub->read_data &&
            (sl->slot_state != DVB_CA_SLOTSTATE_LINKINIT)) {
-               if (ebuf == NULL)
+               if (!ebuf)
                        status = ca->pub->read_data(ca->pub, slot, buf,
                                                    sizeof(buf));
                else
@@ -699,7 +697,6 @@ static int dvb_ca_en50221_read_data(struct dvb_ca_private *ca, int slot,
                if (status == 0)
                        goto exit;
        } else {
-
                /* check if there is data available */
                status = ca->pub->read_cam_control(ca->pub, slot,
                                                   CTRLIF_STATUS);
@@ -724,7 +721,7 @@ static int dvb_ca_en50221_read_data(struct dvb_ca_private *ca, int slot,
                bytes_read |= status;
 
                /* check it will fit */
-               if (ebuf == NULL) {
+               if (!ebuf) {
                        if (bytes_read > sl->link_buf_size) {
                                pr_err("dvb_ca adapter %d: CAM tried to send a buffer larger than the link buffer size (%i > %i)!\n",
                                       ca->dvbdev->adapter->num, bytes_read,
@@ -777,7 +774,7 @@ static int dvb_ca_en50221_read_data(struct dvb_ca_private *ca, int slot,
         * OK, add it to the receive buffer, or copy into external buffer if
         * supplied
         */
-       if (ebuf == NULL) {
+       if (!ebuf) {
                if (!sl->rx_buffer.data) {
                        status = -EIO;
                        goto exit;
@@ -1052,7 +1049,6 @@ EXPORT_SYMBOL(dvb_ca_en50221_frda_irq);
  */
 static void dvb_ca_en50221_thread_wakeup(struct dvb_ca_private *ca)
 {
-
        dprintk("%s\n", __func__);
 
        ca->wakeup = 1;
@@ -1662,7 +1658,6 @@ static ssize_t dvb_ca_en50221_io_read(struct file *file, char __user *buf,
        /* wait for some data */
        status = dvb_ca_en50221_io_read_condition(ca, &result, &slot);
        if (status == 0) {
-
                /* if we're in nonblocking mode, exit immediately */
                if (file->f_flags & O_NONBLOCK)
                        return -EWOULDBLOCK;