Staging: vt6655: Add check dma_mapping_error
This patch checks for dma_mapping_error() after using dma_map_single. If the dma map fails we release skb buff allocated by dev_alloc_skb() to avoid possible causes of resource leak. Signed-off-by: Haneen Mohammed <hamohammed.sa@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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