From: Nathan Chancellor Date: Wed, 8 Jun 2022 15:27:57 +0000 (-0700) Subject: mmc: sdhci-brcmstb: Initialize base_clk to NULL in sdhci_brcmstb_probe() X-Git-Tag: v6.0-rc1~115^2~38 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=c3c0ed75ffbff5c70667030b5139bbb75b0a30f5;p=thirdparty%2Flinux.git mmc: sdhci-brcmstb: Initialize base_clk to NULL in sdhci_brcmstb_probe() Clang warns a few times along the lines of: drivers/mmc/host/sdhci-brcmstb.c:302:6: warning: variable 'base_clk' is used uninitialized whenever 'if' condition is true [-Wsometimes-uninitialized] if (res) ^~~ drivers/mmc/host/sdhci-brcmstb.c:376:24: note: uninitialized use occurs here clk_disable_unprepare(base_clk); ^~~~~~~~ base_clk is used in the error path before it is initialized. Initialize it to NULL, as clk_disable_unprepare() calls clk_disable() and clk_unprepare(), which both handle NULL pointers gracefully. Link: https://github.com/ClangBuiltLinux/linux/issues/1650 Reported-by: kernel test robot Signed-off-by: Nathan Chancellor Acked-by: Florian Fainelli Acked-by: Adrian Hunter Link: https://lore.kernel.org/r/20220608152757.82529-1-nathan@kernel.org Signed-off-by: Ulf Hansson --- diff --git a/drivers/mmc/host/sdhci-brcmstb.c b/drivers/mmc/host/sdhci-brcmstb.c index f8dff85379208..28e9cf995c414 100644 --- a/drivers/mmc/host/sdhci-brcmstb.c +++ b/drivers/mmc/host/sdhci-brcmstb.c @@ -256,7 +256,7 @@ static int sdhci_brcmstb_probe(struct platform_device *pdev) struct sdhci_host *host; struct resource *iomem; struct clk *clk; - struct clk *base_clk; + struct clk *base_clk = NULL; int res; match = of_match_node(sdhci_brcm_of_match, pdev->dev.of_node);