msm: mdss: Fix invalid dma attachment during fb shutdown
If DMA attachment fail during fb_mmap, all ION memory will get free. It is necessary to reset the fbmem and fb_attachemnt pointer to NULL, otherwise during shutdown will perform another free and causing issue. CRs-Fixed: 1090244 Change-Id: I92affcf2ce039eecfc72b7c191e058f37815c726 Signed-off-by: Benjamin Chan <bkchan@codeaurora.org>
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@ -2082,6 +2082,10 @@ err_put:
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dma_buf_put(mfd->fbmem_buf);
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fb_mmap_failed:
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ion_free(mfd->fb_ion_client, mfd->fb_ion_handle);
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mfd->fb_attachment = NULL;
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mfd->fb_table = NULL;
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mfd->fb_ion_handle = NULL;
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mfd->fbmem_buf = NULL;
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return rc;
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}
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