powerpc/ps3: use dma_mapping_error()
[ Upstream commit5.4-rM2-2.2.x-imx-squashedd0edaa28a1
] The DMA address returned by dma_map_single() should be checked with dma_mapping_error(). Fix the ps3stor_setup() function accordingly. Fixes:80071802cb
("[POWERPC] PS3: Storage Driver Core") Signed-off-by: Vincent Stehlé <vincent.stehle@laposte.net> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20201213182622.23047-1-vincent.stehle@laposte.net Signed-off-by: Sasha Levin <sashal@kernel.org>
parent
d864e7e827
commit
6ef298e1ce
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@ -189,7 +189,7 @@ int ps3stor_setup(struct ps3_storage_device *dev, irq_handler_t handler)
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dev->bounce_lpar = ps3_mm_phys_to_lpar(__pa(dev->bounce_buf));
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dev->bounce_lpar = ps3_mm_phys_to_lpar(__pa(dev->bounce_buf));
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dev->bounce_dma = dma_map_single(&dev->sbd.core, dev->bounce_buf,
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dev->bounce_dma = dma_map_single(&dev->sbd.core, dev->bounce_buf,
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dev->bounce_size, DMA_BIDIRECTIONAL);
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dev->bounce_size, DMA_BIDIRECTIONAL);
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if (!dev->bounce_dma) {
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if (dma_mapping_error(&dev->sbd.core, dev->bounce_dma)) {
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dev_err(&dev->sbd.core, "%s:%u: map DMA region failed\n",
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dev_err(&dev->sbd.core, "%s:%u: map DMA region failed\n",
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__func__, __LINE__);
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__func__, __LINE__);
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error = -ENODEV;
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error = -ENODEV;
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