From: Peter Senna Tschudin <peter.senna@xxxxxxxxx> The function sh_sir_probe() return 0 for success and negative value for most of its internal tests failures. There are two exceptions that are error cases going to err_mem_*:. For this two cases, the function abort its success execution path, but returns non negative value, making it dificult for a caller function to notice the error. This patch fixes the error cases that do not return negative values. This was found by Coccinelle, but the code change was made by hand. This patch is not robot generated. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> ( if@p1 (\(ret < 0\|ret != 0\)) { ... return ret; } | ret@p1 = 0 ) ... when != ret = e1 when != &ret *if(...) { ... when != ret = e2 when forall return ret; } // </smpl> Signed-off-by: Peter Senna Tschudin <peter.senna@xxxxxxxxx> --- Change from V1: Updated commit message. See: http://www.kernelhub.org/?p=2&msg=139319 drivers/net/irda/sh_sir.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/net/irda/sh_sir.c b/drivers/net/irda/sh_sir.c index 7951094..624ac19 100644 --- a/drivers/net/irda/sh_sir.c +++ b/drivers/net/irda/sh_sir.c @@ -741,6 +741,7 @@ static int __devinit sh_sir_probe(struct platform_device *pdev) self->clk = clk_get(&pdev->dev, clk_name); if (IS_ERR(self->clk)) { dev_err(&pdev->dev, "cannot get clock \"%s\"\n", clk_name); + err = -ENODEV; goto err_mem_3; } @@ -760,8 +761,8 @@ static int __devinit sh_sir_probe(struct platform_device *pdev) goto err_mem_4; platform_set_drvdata(pdev, ndev); - - if (request_irq(irq, sh_sir_irq, IRQF_DISABLED, "sh_sir", self)) { + err = request_irq(irq, sh_sir_irq, IRQF_DISABLED, "sh_sir", self); + if (err) { dev_warn(&pdev->dev, "Unable to attach sh_sir interrupt\n"); goto err_mem_4; } -- To unsubscribe from this list: send the line "unsubscribe kernel-janitors" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
