staging: unisys: fix comparison to NULL in visorchipset.c

This patch fixes the following type of check patch warnings:
Comparison to NULL could be written

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

diff --git a/drivers/staging/unisys/visorbus/visorchipset.c b/drivers/staging/unisys/visorbus/visorchipset.c
index 085d19a56866be30f39f9512a93b30c1d6bdcc98..ab8f9ddc64247e4e39071f6ff7cdb1e8c944d86c 100644 (file)
--- a/drivers/staging/unisys/visorbus/visorchipset.c
+++ b/drivers/staging/unisys/visorbus/visorchipset.c
@@ -438,7 +438,7 @@ parser_id_get(struct parser_context *ctx)
 {
        struct spar_controlvm_parameters_header *phdr = NULL;
 
-       if (ctx == NULL)
+       if (!ctx)
                return NULL_UUID_LE;
        phdr = (struct spar_controlvm_parameters_header *)(ctx->data);
        return phdr->id;
@@ -461,7 +461,7 @@ parser_param_start(struct parser_context *ctx,
 {
        struct spar_controlvm_parameters_header *phdr = NULL;
 
-       if (ctx == NULL)
+       if (!ctx)
                goto Away;
        phdr = (struct spar_controlvm_parameters_header *)(ctx->data);
        switch (which_string) {
@@ -522,7 +522,7 @@ parser_string_get(struct parser_context *ctx)
        if (value_length < 0)   /* '\0' was not included in the length */
                value_length = nscan;
        value = kmalloc(value_length + 1, GFP_KERNEL | __GFP_NORETRY);
-       if (value == NULL)
+       if (!value)
                return NULL;
        if (value_length > 0)
                memcpy(value, pscan, value_length);
@@ -875,7 +875,7 @@ bus_responder(enum controlvm_id cmd_id,
              struct controlvm_message_header *pending_msg_hdr,
              int response)
 {
-       if (pending_msg_hdr == NULL)
+       if (!pending_msg_hdr)
                return;         /* no controlvm response needed */
 
        if (pending_msg_hdr->id != (u32)cmd_id)
@@ -893,7 +893,7 @@ device_changestate_responder(enum controlvm_id cmd_id,
        u32 bus_no = p->chipset_bus_no;
        u32 dev_no = p->chipset_dev_no;
 
-       if (p->pending_msg_hdr == NULL)
+       if (!p->pending_msg_hdr)
                return;         /* no controlvm response needed */
        if (p->pending_msg_hdr->id != cmd_id)
                return;
@@ -914,7 +914,7 @@ device_responder(enum controlvm_id cmd_id,
                 struct controlvm_message_header *pending_msg_hdr,
                 int response)
 {
-       if (pending_msg_hdr == NULL)
+       if (!pending_msg_hdr)
                return;         /* no controlvm response needed */
 
        if (pending_msg_hdr->id != (u32)cmd_id)
@@ -1180,7 +1180,7 @@ bus_configure(struct controlvm_message *inmsg,
                POSTCODE_LINUX_3(BUS_CONFIGURE_FAILURE_PC, bus_no,
                                 POSTCODE_SEVERITY_ERR);
                rc = -CONTROLVM_RESP_ERROR_BUS_INVALID;
-       } else if (bus_info->pending_msg_hdr != NULL) {
+       } else if (bus_info->pending_msg_hdr) {
                POSTCODE_LINUX_3(BUS_CONFIGURE_FAILURE_PC, bus_no,
                                 POSTCODE_SEVERITY_ERR);
                rc = -CONTROLVM_RESP_ERROR_MESSAGE_ID_INVALID_FOR_CLIENT;