MIPS: dma-default: Defend against NULL dev in massage_gfp_flags
This patch ensures that the dev parameter is checked for NULL before it is dereferenced in massage_gfp_flags. If dev is NULL, then fall back setting the GFP flag requested and available. Signed-off-by: Matt Redfearn <matt.redfearn@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/11919/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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