From: simran singhal <singhalsimran0@gmail.com>
Date: Fri, 10 Mar 2017 05:13:12 +0000 (+0530)
Subject: staging: lirc_zilog: Clean up tests if NULL returned on failure
X-Git-Tag: v4.12-rc1~84^2~611
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=1e8b15d06a0ec40180134736aad3674137cad4d9;p=linux.git

staging: lirc_zilog: Clean up tests if NULL returned on failure

Some functions like kmalloc/kzalloc return NULL on failure.
When NULL represents failure, !x is commonly used.

This was done using Coccinelle:
@@
expression *e;
identifier l1;
@@

e = \(kmalloc\|kzalloc\|kcalloc\|devm_kzalloc\)(...);
...
- e == NULL
+ !e

Signed-off-by: simran singhal <singhalsimran0@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/staging/media/lirc/lirc_zilog.c b/drivers/staging/media/lirc/lirc_zilog.c
index e4a533b6beb3..f426460ccd54 100644
--- a/drivers/staging/media/lirc/lirc_zilog.c
+++ b/drivers/staging/media/lirc/lirc_zilog.c
@@ -1475,7 +1475,7 @@ static int ir_probe(struct i2c_client *client, const struct i2c_device_id *id)
 	ir = get_ir_device_by_adapter(adap);
 	if (ir == NULL) {
 		ir = kzalloc(sizeof(struct IR), GFP_KERNEL);
-		if (ir == NULL) {
+		if (!ir) {
 			ret = -ENOMEM;
 			goto out_no_ir;
 		}
@@ -1515,7 +1515,7 @@ static int ir_probe(struct i2c_client *client, const struct i2c_device_id *id)
 
 		/* Set up a struct IR_tx instance */
 		tx = kzalloc(sizeof(struct IR_tx), GFP_KERNEL);
-		if (tx == NULL) {
+		if (!tx) {
 			ret = -ENOMEM;
 			goto out_put_xx;
 		}
@@ -1559,7 +1559,7 @@ static int ir_probe(struct i2c_client *client, const struct i2c_device_id *id)
 
 		/* Set up a struct IR_rx instance */
 		rx = kzalloc(sizeof(struct IR_rx), GFP_KERNEL);
-		if (rx == NULL) {
+		if (!rx) {
 			ret = -ENOMEM;
 			goto out_put_xx;
 		}