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If enabling core_clk fails, the function currently returns the error without disabling cfgr_clk. This path is reachable from dw_probe(), which calls axi_dma_resume() directly after pm_runtime_get_noresume(). The probe error path only disables runtime PM, so cfgr_clk can remain prepared and enabled after a failed probe. Unwind cfgr_clk when core_clk enable fails so the resume helper keeps the clock state balanced on all error paths. Fixes: 1fe20f1b8454 ("dmaengine: Introduce DW AXI DMAC driver") Co-developed-by: Ijae Kim Signed-off-by: Ijae Kim Signed-off-by: Myeonghun Pak --- drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c b/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c index 5d74bc29cf..001ab7464e 100644 --- a/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c +++ b/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c @@ -1333,12 +1333,17 @@ static int axi_dma_resume(struct axi_dma_chip *chip) ret = clk_prepare_enable(chip->core_clk); if (ret < 0) - return ret; + goto err_disable_cfgr_clk; axi_dma_enable(chip); axi_dma_irq_enable(chip); return 0; + +err_disable_cfgr_clk: + clk_disable_unprepare(chip->cfgr_clk); + + return ret; } static int __maybe_unused axi_dma_runtime_suspend(struct device *dev) -- 2.47.1