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xhci: check for failed dma pool allocation
[firefly-linux-kernel-4.4.55.git]
/
drivers
/
usb
/
host
/
xhci-mem.c
diff --git
a/drivers/usb/host/xhci-mem.c
b/drivers/usb/host/xhci-mem.c
index fbf75e57628b72e0b7a74237d8a9610826b2ab93..f2e57a1112c93c2c1291df41782c5ba97057af75 100644
(file)
--- a/
drivers/usb/host/xhci-mem.c
+++ b/
drivers/usb/host/xhci-mem.c
@@
-369,6
+369,10
@@
static struct xhci_container_ctx *xhci_alloc_container_ctx(struct xhci_hcd *xhci
ctx->size += CTX_SIZE(xhci->hcc_params);
ctx->bytes = dma_pool_alloc(xhci->device_pool, flags, &ctx->dma);
+ if (!ctx->bytes) {
+ kfree(ctx);
+ return NULL;
+ }
memset(ctx->bytes, 0, ctx->size);
return ctx;
}