lkml.org 
[lkml]   [2017]   [Sep]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH] Staging: irda: Use !x instead of NULL comparison
Date
Test for NULL as !x where functions that return NULL on failure
are used. Done using the following semantic patch by coccinelle.

@ is_null @
expression E;
statement S;
@@

E = (\(kmalloc\|devm_kzalloc\|kmalloc_array\|devm_ioremap\|
usb_alloc_urb\|alloc_netdev\|dev_alloc_skb\)(...));

(
if(!E)
S
|
-if(E==NULL)
+if(!E)
S
)

Signed-off-by: Srishti Sharma <srishtishar@gmail.com>
---
drivers/staging/irda/net/discovery.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/irda/net/discovery.c b/drivers/staging/irda/net/discovery.c
index 364d70a..1e54954 100644
--- a/drivers/staging/irda/net/discovery.c
+++ b/drivers/staging/irda/net/discovery.c
@@ -179,7 +179,7 @@ void irlmp_expire_discoveries(hashbin_t *log, __u32 saddr, int force)
/* Create the client specific buffer */
n = HASHBIN_GET_SIZE(log);
buffer = kmalloc(n * sizeof(struct irda_device_info), GFP_ATOMIC);
- if (buffer == NULL) {
+ if (!buffer) {
spin_unlock_irqrestore(&log->hb_spinlock, flags);
return;
}
@@ -291,7 +291,7 @@ struct irda_device_info *irlmp_copy_discoveries(hashbin_t *log, int *pn,
/* Create the client specific buffer */
n = HASHBIN_GET_SIZE(log);
buffer = kmalloc(n * sizeof(struct irda_device_info), GFP_ATOMIC);
- if (buffer == NULL) {
+ if (!buffer) {
spin_unlock_irqrestore(&log->hb_spinlock, flags);
return NULL;
}
--
2.7.4
\
 
 \ /
  Last update: 2017-09-16 08:35    [W:0.040 / U:0.260 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site