From ddf6451ff98c5139c63639db826df540173db2d5 Mon Sep 17 00:00:00 2001 From: Bhaktipriya Shridhar Date: Mon, 21 Mar 2016 02:08:36 +0530 Subject: [PATCH] staging: rtl8712: usb_ops_linux: 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: Bhaktipriya Shridhar Signed-off-by: Greg Kroah-Hartman --- drivers/staging/rtl8712/usb_ops_linux.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/rtl8712/usb_ops_linux.c b/drivers/staging/rtl8712/usb_ops_linux.c index 454cdf6c7fa1..6f12345709c2 100644 --- a/drivers/staging/rtl8712/usb_ops_linux.c +++ b/drivers/staging/rtl8712/usb_ops_linux.c @@ -504,7 +504,7 @@ int r8712_usbctrl_vendorreq(struct intf_priv *pintfpriv, u8 request, u16 value, u8 *palloc_buf, *pIo_buf; palloc_buf = kmalloc((u32)len + 16, GFP_ATOMIC); - if (palloc_buf == NULL) + if (!palloc_buf) return -ENOMEM; pIo_buf = palloc_buf + 16 - ((addr_t)(palloc_buf) & 0x0f); if (requesttype == 0x01) {