[PATCH V2 19/20] dmaengine/amba-pl08x: Check txd->llis_va before freeing dma_pool
From: Viresh Kumar <hidden>
Date: 2011-08-01 09:40:27
Also in:
lkml
Subsystem:
dma generic offload engine subsystem, the rest · Maintainers:
Vinod Koul, Linus Torvalds
In pl08x_free_txd(), check if pool is allocated successfully before freeing it. Signed-off-by: Viresh Kumar <redacted> Acked-by: Linus Walleij <redacted> --- drivers/dma/amba-pl08x.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/drivers/dma/amba-pl08x.c b/drivers/dma/amba-pl08x.c
index adc8a36..2667e0d 100644
--- a/drivers/dma/amba-pl08x.c
+++ b/drivers/dma/amba-pl08x.c@@ -796,7 +796,8 @@ static void pl08x_free_txd(struct pl08x_driver_data *pl08x, struct pl08x_sg *dsg, *_dsg; /* Free the LLI */ - dma_pool_free(pl08x->pool, txd->llis_va, txd->llis_bus); + if (txd->llis_va) + dma_pool_free(pl08x->pool, txd->llis_va, txd->llis_bus); pl08x->pool_ctr--;
--
1.7.2.2