[PATCH 2/8] [media] ttusb_dec: Adjust five checks for null pointers

[SF Markus Elfring]

From: Markus Elfring <elfr...@users.sourceforge.net>
Date: Wed, 13 Sep 2017 18:22:35 +0200
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The script “checkpatch.pl” pointed information out like the following.

Comparison to NULL could be written …

Thus fix the affected source code places.

Signed-off-by: Markus Elfring <elfr...@users.sourceforge.net>
---
 drivers/media/usb/ttusb-dec/ttusb_dec.c | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/drivers/media/usb/ttusb-dec/ttusb_dec.c 
b/drivers/media/usb/ttusb-dec/ttusb_dec.c
index 0bc80daf6e2e..901cb221aad2 100644
--- a/drivers/media/usb/ttusb-dec/ttusb_dec.c
+++ b/drivers/media/usb/ttusb-dec/ttusb_dec.c
@@ -406,15 +406,15 @@ static int ttusb_dec_get_stb_state (struct ttusb_dec 
*dec, unsigned int *mode,
                return result;
 
        if (c_length >= 0x0c) {
-               if (mode != NULL) {
+               if (mode) {
                        memcpy(&tmp, c, 4);
                        *mode = ntohl(tmp);
                }
-               if (model != NULL) {
+               if (model) {
                        memcpy(&tmp, &c[4], 4);
                        *model = ntohl(tmp);
                }
-               if (version != NULL) {
+               if (version) {
                        memcpy(&tmp, &c[8], 4);
                        *version = ntohl(tmp);
                }
@@ -1393,7 +1393,7 @@ static int ttusb_dec_boot_dsp(struct ttusb_dec *dec)
        j = 0;
 
        b = kmalloc(ARM_PACKET_SIZE, GFP_KERNEL);
-       if (b == NULL) {
+       if (!b) {
                release_firmware(fw_entry);
                return -ENOMEM;
        }
@@ -1703,18 +1703,17 @@ static int ttusb_dec_probe(struct usb_interface *intf,
                break;
        }
 
-       if (dec->fe == NULL) {
+       if (!dec->fe)
                printk("dvb-ttusb-dec: A frontend driver was not found for 
device [%04x:%04x]\n",
                       le16_to_cpu(dec->udev->descriptor.idVendor),
                       le16_to_cpu(dec->udev->descriptor.idProduct));
-       } else {
+       else
                if (dvb_register_frontend(&dec->adapter, dec->fe)) {
                        printk("budget-ci: Frontend registration failed!\n");
                        if (dec->fe->ops.release)
                                dec->fe->ops.release(dec->fe);
                        dec->fe = NULL;
                }
-       }
 
        ttusb_dec_init_v_pes(dec);
        ttusb_dec_init_filters(dec);
-- 
2.14.1