media: platform: stm32: Add check for clk_enable()

commit f883f34b6a46b1a09d44d7f94c3cd72fe0e8f93b upstream.

Add check for the return value of clk_enable() to gurantee the success.

Fixes: 002e8f0d5927 ("media: stm32-dma2d: STM32 DMA2D driver")
Cc: stable@vger.kernel.org
Signed-off-by: Jiasheng Jiang <jiashengjiangcool@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/media/platform/st/stm32/dma2d/dma2d.c b/drivers/media/platform/st/stm32/dma2d/dma2d.c
index 92f1edee58f8992136461b76d97081a02877e2ae..3c64e91260250eeb2023d4197bcf06fdb6b41e7c 100644 (file)
--- a/drivers/media/platform/st/stm32/dma2d/dma2d.c
+++ b/drivers/media/platform/st/stm32/dma2d/dma2d.c
@@ -492,7 +492,8 @@ static void device_run(void *prv)
        dst->sequence = frm_cap->sequence++;
        v4l2_m2m_buf_copy_metadata(src, dst, true);
 
-       clk_enable(dev->gate);
+       if (clk_enable(dev->gate))
+               goto end;
 
        dma2d_config_fg(dev, frm_out,
                        vb2_dma_contig_plane_dma_addr(&src->vb2_buf, 0));