staging: unisys: fix all NULL comparisons in visorchipset_main.c

Fix all of the NULL comparison checks generated by checkpatch.pl.

Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/unisys/visorchipset/visorchipset_main.c b/drivers/staging/unisys/visorchipset/visorchipset_main.c
index a60597e8f20bebb36b1c62242a7789f1c438c888..5d1f1fad511ed4f444c2d5029e456b0aa46142f5 100644 (file)
--- a/drivers/staging/unisys/visorchipset/visorchipset_main.c
+++ b/drivers/staging/unisys/visorchipset/visorchipset_main.c
@@ -550,7 +550,7 @@ visorchipset_register_busdev_server(
                        struct ultra_vbus_deviceinfo *driver_info)
 {
        down(&notifier_lock);
-       if (notifiers == NULL) {
+       if (!notifiers) {
                memset(&BusDev_Server_Notifiers, 0,
                       sizeof(BusDev_Server_Notifiers));
                serverregistered = 0;   /* clear flag */
@@ -575,7 +575,7 @@ visorchipset_register_busdev_client(
                        struct ultra_vbus_deviceinfo *driver_info)
 {
        down(&notifier_lock);
-       if (notifiers == NULL) {
+       if (!notifiers) {
                memset(&BusDev_Client_Notifiers, 0,
                       sizeof(BusDev_Client_Notifiers));
                clientregistered = 0;   /* clear flag */
@@ -1038,7 +1038,7 @@ bus_create(struct controlvm_message *inmsg)
                goto Away;
        }
        pBusInfo = kzalloc(sizeof(struct visorchipset_bus_info), GFP_KERNEL);
-       if (pBusInfo == NULL) {
+       if (!pBusInfo) {
                POSTCODE_LINUX_3(BUS_CREATE_FAILURE_PC, busNo,
                                 POSTCODE_SEVERITY_ERR);
                rc = -CONTROLVM_RESP_ERROR_KMALLOC_FAILED;
@@ -1172,7 +1172,7 @@ my_device_create(struct controlvm_message *inmsg)
                goto Away;
        }
        pDevInfo = kzalloc(sizeof(struct visorchipset_device_info), GFP_KERNEL);
-       if (pDevInfo == NULL) {
+       if (!pDevInfo) {
                POSTCODE_LINUX_4(DEVICE_CREATE_FAILURE_PC, devNo, busNo,
                                 POSTCODE_SEVERITY_ERR);
                rc = -CONTROLVM_RESP_ERROR_KMALLOC_FAILED;
@@ -1282,7 +1282,7 @@ initialize_controlvm_payload_info(HOSTADDRESS phys_addr, u64 offset, u32 bytes,
        u8 __iomem *payload = NULL;
        int rc = CONTROLVM_RESP_SUCCESS;
 
-       if (info == NULL) {
+       if (!info) {
                rc = -CONTROLVM_RESP_ERROR_PAYLOAD_INVALID;
                goto Away;
        }
@@ -1292,7 +1292,7 @@ initialize_controlvm_payload_info(HOSTADDRESS phys_addr, u64 offset, u32 bytes,
                goto Away;
        }
        payload = ioremap_cache(phys_addr + offset, bytes);
-       if (payload == NULL) {
+       if (!payload) {
                rc = -CONTROLVM_RESP_ERROR_IOREMAP_FAILED;
                goto Away;
        }
@@ -1486,7 +1486,7 @@ parahotplug_request_create(struct controlvm_message *msg)
        struct parahotplug_request *req;
 
        req = kmalloc(sizeof(*req), GFP_KERNEL|__GFP_NORETRY);
-       if (req == NULL)
+       if (!req)
                return NULL;
 
        req->id = parahotplug_next_id();
@@ -1611,7 +1611,7 @@ parahotplug_process_message(struct controlvm_message *inmsg)
 
        req = parahotplug_request_create(inmsg);
 
-       if (req == NULL)
+       if (!req)
                return;
 
        if (inmsg->cmd.device_change_state.state.active) {
@@ -1745,7 +1745,7 @@ handle_command(struct controlvm_message inmsg, HOSTADDRESS channel_addr)
                break;
        }
 
-       if (parser_ctx != NULL) {
+       if (parser_ctx) {
                parser_done(parser_ctx);
                parser_ctx = NULL;
        }
@@ -2217,7 +2217,7 @@ visorchipset_init(void)
                periodic_controlvm_workqueue =
                    create_singlethread_workqueue("visorchipset_controlvm");
 
-               if (periodic_controlvm_workqueue == NULL) {
+               if (!periodic_controlvm_workqueue) {
                        POSTCODE_LINUX_2(CREATE_WORKQUEUE_FAILED_PC,
                                         DIAG_SEVERITY_ERR);
                        rc = -ENOMEM;