[PATCH 4.9 19/56] net: arc_emac: fix arc_emac_rx() error paths

4.9-stable review patch. If anyone has any objections, please let me know. -- From: Alexander Kochetkov [ Upstream commit e688822d035b494071ecbadcccbd6f3325fb0f59 ] arc_emac_rx() has some issues found by code review. In case netdev_alloc_skb_ip_align()

[PATCH 4.9 19/56] net: arc_emac: fix arc_emac_rx() error paths

4.9-stable review patch. If anyone has any objections, please let me know. -- From: Alexander Kochetkov [ Upstream commit e688822d035b494071ecbadcccbd6f3325fb0f59 ] arc_emac_rx() has some issues found by code review. In case netdev_alloc_skb_ip_align() or dma_map_single()