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Srinivasarao P authored
The function ion_handle_get_by_id() is called from function msm_ion_custom_ioctl(), so we retained it even though it got deleted in commit 2c155709 ("staging: android: ion: fix ION_IOC_{MAP,SHARE} use-after-free"). This can lead to same use-after-free scenario with ION_IOC_{CLEAN_CACHES,INV_CACHES,CLEAN_INV_CACHES} so removing this unsafe function and holding client->lock for entire operation. Change-Id: I536cfa69465ad692794500e3b31ac137d04940ff Signed-off-by: Srinivasarao P <spathi@codeaurora.org>
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