staging/ozwpan: Fix NULL vs zero in ozusbsvc1.c (sparse warning)
This patch fixes the warning "Using plain integer as NULL pointer",
generated by sparse, by replacing the offending 0s with NULL.
If the initialization with NULL was unnecessary (due to unconditional
assignment before first use) it was removed.
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/staging/ozwpan/ozusbsvc1.c b/drivers/staging/ozwpan/ozusbsvc1.c
index 66bd576..ea4a238b 100644
--- a/drivers/staging/ozwpan/ozusbsvc1.c
+++ b/drivers/staging/ozwpan/ozusbsvc1.c
@@ -71,7 +71,7 @@
oz_trace(" len = 0x%x\n", len);
if (len > 200)
len = 200;
- if (ei == 0)
+ if (ei == NULL)
return -1;
elt = (struct oz_elt *)ei->data;
elt->length = sizeof(struct oz_get_desc_req);
@@ -97,7 +97,7 @@
struct oz_elt_buf *eb = &pd->elt_buff;
struct oz_elt_info *ei = oz_elt_info_alloc(&pd->elt_buff);
struct oz_set_config_req *body;
- if (ei == 0)
+ if (ei == NULL)
return -1;
elt = (struct oz_elt *)ei->data;
elt->length = sizeof(struct oz_set_config_req);
@@ -118,7 +118,7 @@
struct oz_elt_buf *eb = &pd->elt_buff;
struct oz_elt_info *ei = oz_elt_info_alloc(&pd->elt_buff);
struct oz_set_interface_req *body;
- if (ei == 0)
+ if (ei == NULL)
return -1;
elt = (struct oz_elt *)ei->data;
elt->length = sizeof(struct oz_set_interface_req);
@@ -141,7 +141,7 @@
struct oz_elt_buf *eb = &pd->elt_buff;
struct oz_elt_info *ei = oz_elt_info_alloc(&pd->elt_buff);
struct oz_feature_req *body;
- if (ei == 0)
+ if (ei == NULL)
return -1;
elt = (struct oz_elt *)ei->data;
elt->length = sizeof(struct oz_feature_req);
@@ -165,7 +165,7 @@
struct oz_elt_buf *eb = &pd->elt_buff;
struct oz_elt_info *ei = oz_elt_info_alloc(&pd->elt_buff);
struct oz_vendor_class_req *body;
- if (ei == 0)
+ if (ei == NULL)
return -1;
elt = (struct oz_elt *)ei->data;
elt->length = sizeof(struct oz_vendor_class_req) - 1 + data_len;
@@ -264,7 +264,7 @@
int unit_count;
int unit_size;
int rem;
- if (ei == 0)
+ if (ei == NULL)
return -1;
rem = MAX_ISOC_FIXED_DATA;
elt = (struct oz_elt *)ei->data;
@@ -359,7 +359,7 @@
if (usb_ctx)
oz_usb_get(usb_ctx);
spin_unlock_bh(&pd->app_lock[OZ_APPID_USB-1]);
- if (usb_ctx == 0)
+ if (usb_ctx == NULL)
return; /* Context has gone so nothing to do. */
if (usb_ctx->stopped)
goto done;
@@ -391,14 +391,14 @@
struct oz_set_config_rsp *body =
(struct oz_set_config_rsp *)usb_hdr;
oz_hcd_control_cnf(usb_ctx->hport, body->req_id,
- body->rcode, 0, 0);
+ body->rcode, NULL, 0);
}
break;
case OZ_SET_INTERFACE_RSP: {
struct oz_set_interface_rsp *body =
(struct oz_set_interface_rsp *)usb_hdr;
oz_hcd_control_cnf(usb_ctx->hport,
- body->req_id, body->rcode, 0, 0);
+ body->req_id, body->rcode, NULL, 0);
}
break;
case OZ_VENDOR_CLASS_RSP: {
@@ -427,7 +427,7 @@
if (usb_ctx)
oz_usb_get(usb_ctx);
spin_unlock_bh(&pd->app_lock[OZ_APPID_USB-1]);
- if (usb_ctx == 0)
+ if (usb_ctx == NULL)
return; /* Context has gone so nothing to do. */
if (!usb_ctx->stopped) {
oz_trace("Farewell indicated ep = 0x%x\n", ep_num);