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| author | Srinivas Kandagatla <srinivas.kandagatla@linaro.org> | 2019-08-29 10:29:26 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-09-04 13:35:11 +0200 |
| commit | cf61860e6b090bea4050c5688566bfe357cacd11 (patch) | |
| tree | 820f8cd494e910de96301f621466dc10062c755e | |
| parent | 5672ff4dc3898b6b74c114de2f53e667ab5a0327 (diff) | |
| download | linux-cf61860e6b090bea4050c5688566bfe357cacd11.tar.gz | |
misc: fastrpc: free dma buf scatter list
dma buf scatter list is never freed, free it!
Orignally detected by kmemleak:
backtrace:
[<ffffff80088b7658>] kmemleak_alloc+0x50/0x84
[<ffffff8008373284>] sg_kmalloc+0x38/0x60
[<ffffff8008373144>] __sg_alloc_table+0x60/0x110
[<ffffff800837321c>] sg_alloc_table+0x28/0x58
[<ffffff800837336c>] __sg_alloc_table_from_pages+0xc0/0x1ac
[<ffffff800837346c>] sg_alloc_table_from_pages+0x14/0x1c
[<ffffff8008097a3c>] __iommu_get_sgtable+0x5c/0x8c
[<ffffff800850a1d0>] fastrpc_dma_buf_attach+0x84/0xf8
[<ffffff80085114bc>] dma_buf_attach+0x70/0xc8
[<ffffff8008509efc>] fastrpc_map_create+0xf8/0x1e8
[<ffffff80085086f4>] fastrpc_device_ioctl+0x508/0x900
[<ffffff80082428c8>] compat_SyS_ioctl+0x128/0x200
[<ffffff80080832c4>] el0_svc_naked+0x34/0x38
[<ffffffffffffffff>] 0xffffffffffffffff
Reported-by: Mayank Chopra <mak.chopra@codeaurora.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20190829092926.12037-6-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/misc/fastrpc.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/misc/fastrpc.c b/drivers/misc/fastrpc.c index eee2bb398947..47ae84afac2e 100644 --- a/drivers/misc/fastrpc.c +++ b/drivers/misc/fastrpc.c @@ -550,6 +550,7 @@ static void fastrpc_dma_buf_detatch(struct dma_buf *dmabuf, mutex_lock(&buffer->lock); list_del(&a->node); mutex_unlock(&buffer->lock); + sg_free_table(&a->sgt); kfree(a); } |