[PATCHv2 01/10] remoteproc: Bugfix: Deallocate firmware image on shutdown

From: sjur . brandeland
Date: Thu Feb 21 2013 - 12:18:44 EST


From: Dmitry Tarnyagin <dmitry.tarnyagin@xxxxxxxxxxxxxx>

Fixes coherent memory leakage, caused by non-deallocated
firmware image chunk.

Signed-off-by: Dmitry Tarnyagin <dmitry.tarnyagin@xxxxxxxxxxxxxx>
---
drivers/remoteproc/ste_modem_rproc.c | 7 ++++++-
1 files changed, 6 insertions(+), 1 deletions(-)

diff --git a/drivers/remoteproc/ste_modem_rproc.c b/drivers/remoteproc/ste_modem_rproc.c
index a7743c0..fb95c42 100644
--- a/drivers/remoteproc/ste_modem_rproc.c
+++ b/drivers/remoteproc/ste_modem_rproc.c
@@ -240,6 +240,8 @@ static int sproc_drv_remove(struct platform_device *pdev)

/* Unregister as remoteproc device */
rproc_del(sproc->rproc);
+ dma_free_coherent(sproc->rproc->dev.parent, SPROC_FW_SIZE,
+ sproc->fw_addr, sproc->fw_dma_addr);
rproc_put(sproc->rproc);

mdev->drv_data = NULL;
@@ -297,10 +299,13 @@ static int sproc_probe(struct platform_device *pdev)
/* Register as a remoteproc device */
err = rproc_add(rproc);
if (err)
- goto free_rproc;
+ goto free_mem;

return 0;

+free_mem:
+ dma_free_coherent(rproc->dev.parent, SPROC_FW_SIZE,
+ sproc->fw_addr, sproc->fw_dma_addr);
free_rproc:
/* Reset device data upon error */
mdev->drv_data = NULL;
--
1.7.5.4

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