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path: root/drivers/usb/host/xhci-mem.c
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Diffstat (limited to 'drivers/usb/host/xhci-mem.c')
-rw-r--r--drivers/usb/host/xhci-mem.c16
1 files changed, 8 insertions, 8 deletions
diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c
index 5711048708d7..4df752cb0f78 100644
--- a/drivers/usb/host/xhci-mem.c
+++ b/drivers/usb/host/xhci-mem.c
@@ -41,13 +41,13 @@ static struct xhci_segment *xhci_segment_alloc(struct xhci_hcd *xhci, gfp_t flag
seg = kzalloc(sizeof *seg, flags);
if (!seg)
- return 0;
+ return NULL;
xhci_dbg(xhci, "Allocating priv segment structure at %p\n", seg);
seg->trbs = dma_pool_alloc(xhci->segment_pool, flags, &dma);
if (!seg->trbs) {
kfree(seg);
- return 0;
+ return NULL;
}
xhci_dbg(xhci, "// Allocating segment at %p (virtual) 0x%llx (DMA)\n",
seg->trbs, (unsigned long long)dma);
@@ -159,7 +159,7 @@ static struct xhci_ring *xhci_ring_alloc(struct xhci_hcd *xhci,
ring = kzalloc(sizeof *(ring), flags);
xhci_dbg(xhci, "Allocating ring at %p\n", ring);
if (!ring)
- return 0;
+ return NULL;
INIT_LIST_HEAD(&ring->td_list);
if (num_segs == 0)
@@ -196,7 +196,7 @@ static struct xhci_ring *xhci_ring_alloc(struct xhci_hcd *xhci,
fail:
xhci_ring_free(xhci, ring);
- return 0;
+ return NULL;
}
void xhci_free_or_cache_endpoint_ring(struct xhci_hcd *xhci,
@@ -247,7 +247,7 @@ static void xhci_reinit_cached_ring(struct xhci_hcd *xhci,
#define CTX_SIZE(_hcc) (HCC_64BYTE_CONTEXT(_hcc) ? 64 : 32)
-struct xhci_container_ctx *xhci_alloc_container_ctx(struct xhci_hcd *xhci,
+static struct xhci_container_ctx *xhci_alloc_container_ctx(struct xhci_hcd *xhci,
int type, gfp_t flags)
{
struct xhci_container_ctx *ctx = kzalloc(sizeof(*ctx), flags);
@@ -265,7 +265,7 @@ struct xhci_container_ctx *xhci_alloc_container_ctx(struct xhci_hcd *xhci,
return ctx;
}
-void xhci_free_container_ctx(struct xhci_hcd *xhci,
+static void xhci_free_container_ctx(struct xhci_hcd *xhci,
struct xhci_container_ctx *ctx)
{
if (!ctx)
@@ -764,7 +764,7 @@ void xhci_free_virt_device(struct xhci_hcd *xhci, int slot_id)
xhci_free_container_ctx(xhci, dev->out_ctx);
kfree(xhci->devs[slot_id]);
- xhci->devs[slot_id] = 0;
+ xhci->devs[slot_id] = NULL;
}
int xhci_alloc_virt_device(struct xhci_hcd *xhci, int slot_id,
@@ -1779,7 +1779,7 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags)
*/
init_completion(&xhci->addr_dev);
for (i = 0; i < MAX_HC_SLOTS; ++i)
- xhci->devs[i] = 0;
+ xhci->devs[i] = NULL;
if (scratchpad_alloc(xhci, flags))
goto fail;