diff options
| author | Javier Martinez Canillas <javier@osg.samsung.com> | 2016-05-03 16:27:17 -0400 |
|---|---|---|
| committer | Sasha Levin <alexander.levin@verizon.com> | 2016-08-14 17:22:55 -0400 |
| commit | 85470a568a4ceed060d9539c70e29b0707e78feb (patch) | |
| tree | 129489a941afd54d43e18ef1cd26dff8fd144373 | |
| parent | 1dd12c31c91bf3d505a8496f62805b042cb5fa83 (diff) | |
s5p-mfc: Add release callback for memory region devs
[ Upstream commit 6311f1261f59ce5e51fbe5cc3b5e7737197316ac ]
When s5p_mfc_remove() calls put_device() for the reserved memory region
devs, the driver core warns that the dev doesn't have a release callback:
WARNING: CPU: 0 PID: 591 at drivers/base/core.c:251 device_release+0x8c/0x90
Device 's5p-mfc-l' does not have a release() function, it is broken and must be fixed.
Also, the declared DMA memory using dma_declare_coherent_memory() isn't
relased so add a dev .release that calls dma_release_declared_memory().
Cc: <stable@vger.kernel.org>
Fixes: 6e83e6e25eb4 ("[media] s5p-mfc: Fix kernel warning on memory init")
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
| -rw-r--r-- | drivers/media/platform/s5p-mfc/s5p_mfc.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc.c b/drivers/media/platform/s5p-mfc/s5p_mfc.c index 6cd5278cb544..835dbb8f5970 100644 --- a/drivers/media/platform/s5p-mfc/s5p_mfc.c +++ b/drivers/media/platform/s5p-mfc/s5p_mfc.c @@ -1022,6 +1022,11 @@ static int match_child(struct device *dev, void *data) return !strcmp(dev_name(dev), (char *)data); } +static void s5p_mfc_memdev_release(struct device *dev) +{ + dma_release_declared_memory(dev); +} + static void *mfc_get_drv_data(struct platform_device *pdev); static int s5p_mfc_alloc_memdevs(struct s5p_mfc_dev *dev) @@ -1036,6 +1041,7 @@ static int s5p_mfc_alloc_memdevs(struct s5p_mfc_dev *dev) } dev_set_name(dev->mem_dev_l, "%s", "s5p-mfc-l"); + dev->mem_dev_l->release = s5p_mfc_memdev_release; device_initialize(dev->mem_dev_l); of_property_read_u32_array(dev->plat_dev->dev.of_node, "samsung,mfc-l", mem_info, 2); @@ -1055,6 +1061,7 @@ static int s5p_mfc_alloc_memdevs(struct s5p_mfc_dev *dev) } dev_set_name(dev->mem_dev_r, "%s", "s5p-mfc-r"); + dev->mem_dev_r->release = s5p_mfc_memdev_release; device_initialize(dev->mem_dev_r); of_property_read_u32_array(dev->plat_dev->dev.of_node, "samsung,mfc-r", mem_info, 2); |