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 <bhaktipriya96@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
u8 res = _SUCCESS;
ph2c = kzalloc(sizeof(struct cmd_obj), GFP_KERNEL);
- if (ph2c == NULL) {
+ if (!ph2c) {
res = _FAIL;
goto exit;
}
psetstakey_para = kzalloc(sizeof(struct set_stakey_parm), GFP_KERNEL);
- if (psetstakey_para == NULL) {
+ if (!psetstakey_para) {
kfree(ph2c);
res = _FAIL;
goto exit;
DBG_88E("%s\n", __func__);
pcmd = kzalloc(sizeof(struct cmd_obj), GFP_KERNEL);
- if (pcmd == NULL) {
+ if (!pcmd) {
res = _FAIL;
goto exit;
}
psetkeyparm = kzalloc(sizeof(struct setkey_parm), GFP_KERNEL);
- if (psetkeyparm == NULL) {
+ if (!psetkeyparm) {
kfree(pcmd);
res = _FAIL;
goto exit;