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

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>

diff --git a/drivers/media/platform/st/stm32/dma2d/dma2d.c b/drivers/media/platform/st/stm32/dma2d/dma2d.c
index b6c8400fb92da974d95bd74770bd8196b5be0dc0..48fa781aab06c14cd64e9b9eb1a278a2ef8ca7fc 100644 (file)
--- a/drivers/media/platform/st/stm32/dma2d/dma2d.c
+++ b/drivers/media/platform/st/stm32/dma2d/dma2d.c
@@ -490,7 +490,8 @@ 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));