From: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
Date: Thu, 11 May 2017 17:52:38 +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 <elfring@xxxxxxxxxxxxxxxxxxxxx>
---
drivers/hv/vmbus_drv.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
index ff94b111ed8d..b55b979ecf8a 100644
--- a/drivers/hv/vmbus_drv.c
+++ b/drivers/hv/vmbus_drv.c
@@ -93,7 +93,7 @@ static DEFINE_SEMAPHORE(hyperv_mmio_lock);
static int vmbus_exists(void)
{
- if (hv_acpi_dev == NULL)
+ if (!hv_acpi_dev)
return -ENODEV;
return 0;
@@ -568,7 +568,7 @@ static const struct hv_vmbus_device_id *hv_vmbus_get_id(struct hv_driver *drv,
return id;
id = drv->id_table;
- if (id == NULL)
+ if (!id)
return NULL; /* empty device table */
for (; !is_null_guid(&id->guid); id++)
@@ -871,7 +871,7 @@ void vmbus_on_msg_dpc(unsigned long data)
entry = &channel_message_table[hdr->msgtype];
if (entry->handler_type == VMHT_BLOCKING) {
ctx = kmalloc(sizeof(*ctx), GFP_ATOMIC);
- if (ctx == NULL)
+ if (!ctx)
return;
INIT_WORK(&ctx->work, vmbus_onmessage_work);
@@ -894,7 +894,7 @@ static void vmbus_channel_isr(struct vmbus_channel *channel)
void (*callback_fn)(void *);
callback_fn = READ_ONCE(channel->onchannel_callback);
- if (likely(callback_fn != NULL))
+ if (likely(callback_fn))
(*callback_fn)(channel->channel_callback_context);
}
@@ -970,7 +970,7 @@ static void vmbus_isr(void)
union hv_synic_event_flags *event;
bool handled = false;
- if (unlikely(page_addr == NULL))
+ if (unlikely(!page_addr))
return;
event = (union hv_synic_event_flags *)page_addr +
--
2.12.3
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