From: Markus Elfring <[email protected]>
Date: Wed, 6 Sep 2017 11:48:44 +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 <[email protected]>
---
 sound/firewire/bebob/bebob_stream.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/sound/firewire/bebob/bebob_stream.c 
b/sound/firewire/bebob/bebob_stream.c
index bc9e42b6368e..211ff43207d6 100644
--- a/sound/firewire/bebob/bebob_stream.c
+++ b/sound/firewire/bebob/bebob_stream.c
@@ -268,7 +268,7 @@ map_data_channels(struct snd_bebob *bebob, struct 
amdtp_stream *s)
         * use the maximum length of FCP.
         */
        buf = kzalloc(256, GFP_KERNEL);
-       if (buf == NULL)
+       if (!buf)
                return -ENOMEM;
 
        if (s == &bebob->tx_stream)
@@ -472,7 +472,7 @@ break_both_connections(struct snd_bebob *bebob)
        bebob->connected = false;
 
        /* These models seems to be in transition state for a longer time. */
-       if (bebob->maudio_special_quirk != NULL)
+       if (bebob->maudio_special_quirk)
                msleep(200);
 }
 
@@ -496,7 +496,7 @@ start_stream(struct snd_bebob *bebob, struct amdtp_stream 
*stream,
                conn = &bebob->out_conn;
 
        /* channel mapping */
-       if (bebob->maudio_special_quirk == NULL) {
+       if (!bebob->maudio_special_quirk) {
                err = map_data_channels(bebob, stream);
                if (err < 0)
                        goto end;
@@ -611,7 +611,7 @@ int snd_bebob_stream_start_duplex(struct snd_bebob *bebob, 
unsigned int rate)
                 *
                 * For firmware customized by M-Audio, refer to next NOTE.
                 */
-               if (bebob->maudio_special_quirk == NULL) {
+               if (!bebob->maudio_special_quirk) {
                        err = rate_spec->set(bebob, rate);
                        if (err < 0) {
                                dev_err(&bebob->unit->device,
@@ -637,7 +637,7 @@ int snd_bebob_stream_start_duplex(struct snd_bebob *bebob, 
unsigned int rate)
                 * The firmware customized by M-Audio uses these commands to
                 * start transmitting stream. This is not usual way.
                 */
-               if (bebob->maudio_special_quirk != NULL) {
+               if (bebob->maudio_special_quirk) {
                        err = rate_spec->set(bebob, rate);
                        if (err < 0) {
                                dev_err(&bebob->unit->device,
@@ -794,7 +794,7 @@ fill_stream_formations(struct snd_bebob *bebob, enum 
avc_bridgeco_plug_dir dir,
        int err;
 
        buf = kmalloc(FORMAT_MAXIMUM_LENGTH, GFP_KERNEL);
-       if (buf == NULL)
+       if (!buf)
                return -ENOMEM;
 
        if (dir == AVC_BRIDGECO_PLUG_DIR_IN)
-- 
2.14.1

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