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xhci: check for failed dma pool allocation
Fail and free the container context in case dma_pool_alloc() can't allocate
the raw context data part of it
This patch should be backported to kernels as old as 2.6.31, that
contain the commit d115b04818
"USB: xhci:
Support for 64-byte contexts".
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: John Youn <johnyoun@synopsys.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
parent
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1 changed files with 4 additions and 0 deletions
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@ -373,6 +373,10 @@ static struct xhci_container_ctx *xhci_alloc_container_ctx(struct xhci_hcd *xhci
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ctx->size += CTX_SIZE(xhci->hcc_params);
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ctx->bytes = dma_pool_alloc(xhci->device_pool, flags, &ctx->dma);
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if (!ctx->bytes) {
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kfree(ctx);
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return NULL;
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}
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memset(ctx->bytes, 0, ctx->size);
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return ctx;
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}
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