Jason Ekstrand e0355a0ad3 dma-buf/sync_file: Don't leak fences on merge failure ... commit ffe000217c upstream. Each add_fence() call does a dma_fence_get() on the relevant fence. In the error path, we weren't calling dma_fence_put() so all those fences got leaked. Also, in the krealloc_array failure case, we weren't freeing the fences array. Instead, ensure that i and fences are always zero-initialized and dma_fence_put() all the fences and kfree(fences) on every error path. Signed-off-by: Jason Ekstrand <jason@jlekstrand.net> Reviewed-by: Christian König <christian.koenig@amd.com> Fixes: a02b9dc90d ("dma-buf/sync_file: refactor fence storage in struct sync_file") Cc: Gustavo Padovan <gustavo.padovan@collabora.co.uk> Cc: Christian König <christian.koenig@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210624174732.1754546-1-jason@jlekstrand.net Signed-off-by: Christian König <christian.koenig@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2021-07-28 11:13:45 +02:00
..
dma-buf.c	dma-buf: balance refcount inbalance	2019-07-28 08:29:28 +02:00
dma-fence-array.c	dma-fence: Make ->wait callback optional	2018-07-03 13:12:57 +02:00
dma-fence.c	dma-fence: Serialise signal enabling (dma_fence_enable_sw_signaling)	2020-10-01 13:14:24 +02:00
Kconfig
Makefile
reservation.c	dma-buf: Discard old fence_excl on retrying get_fences_rcu for realloc	2019-07-28 08:29:28 +02:00
seqno-fence.c
sw_sync.c	dma-buf/sw_sync: Synchronize signal vs syncpt free	2019-10-07 18:57:04 +02:00
sync_debug.c	Linux 4.13-rc2	2017-07-27 08:15:43 +10:00
sync_debug.h	dma-buf: Remove unneeded stubs around sync_debug interfaces	2018-05-07 15:58:07 +02:00
sync_file.c	dma-buf/sync_file: Don't leak fences on merge failure	2021-07-28 11:13:45 +02:00
sync_trace.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00