6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Jiasheng Jiang jiashengjiangcool@gmail.com
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 --- drivers/media/platform/st/stm32/dma2d/dma2d.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
--- 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));