* [PATCH] video: fbdev: pxa3xx_gcu: fix error return code in pxa3xx_gcu_probe() @ 2017-08-08 22:17 ` Gustavo A. R. Silva 2017-08-21 14:17 ` Bartlomiej Zolnierkiewicz 0 siblings, 1 reply; 2+ messages in thread From: Gustavo A. R. Silva @ 2017-08-08 22:17 UTC (permalink / raw) To: Bartlomiej Zolnierkiewicz; +Cc: linux-fbdev, linux-kernel, Gustavo A. R. Silva platform_get_irq() returns an error code, but the pxa3xx_gcu driver ignores it and always returns -ENODEV. This is not correct and, prevents -EPROBE_DEFER from being propagated properly. Also, notice that platform_get_irq() no longer returns 0 on error: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?idã30b9a6bb35dc7097a4f02cb1ae7b6f96df92af Print and propagate the return value of platform_get_irq on failure. This issue was detected with the help of Coccinelle. Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> --- drivers/video/fbdev/pxa3xx-gcu.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/video/fbdev/pxa3xx-gcu.c b/drivers/video/fbdev/pxa3xx-gcu.c index 50bce45..933619d 100644 --- a/drivers/video/fbdev/pxa3xx-gcu.c +++ b/drivers/video/fbdev/pxa3xx-gcu.c @@ -626,8 +626,8 @@ static int pxa3xx_gcu_probe(struct platform_device *pdev) /* request the IRQ */ irq = platform_get_irq(pdev, 0); if (irq < 0) { - dev_err(dev, "no IRQ defined\n"); - return -ENODEV; + dev_err(dev, "no IRQ defined: %d\n", irq); + return irq; } ret = devm_request_irq(dev, irq, pxa3xx_gcu_handle_irq, -- 2.5.0 ^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] video: fbdev: pxa3xx_gcu: fix error return code in pxa3xx_gcu_probe() 2017-08-08 22:17 ` [PATCH] video: fbdev: pxa3xx_gcu: fix error return code in pxa3xx_gcu_probe() Gustavo A. R. Silva @ 2017-08-21 14:17 ` Bartlomiej Zolnierkiewicz 0 siblings, 0 replies; 2+ messages in thread From: Bartlomiej Zolnierkiewicz @ 2017-08-21 14:17 UTC (permalink / raw) To: Gustavo A. R. Silva; +Cc: linux-fbdev, linux-kernel On Tuesday, August 08, 2017 05:17:30 PM Gustavo A. R. Silva wrote: > platform_get_irq() returns an error code, but the pxa3xx_gcu driver > ignores it and always returns -ENODEV. This is not correct and, > prevents -EPROBE_DEFER from being propagated properly. > > Also, notice that platform_get_irq() no longer returns 0 on error: > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?idã30b9a6bb35dc7097a4f02cb1ae7b6f96df92af > > Print and propagate the return value of platform_get_irq on failure. > > This issue was detected with the help of Coccinelle. > > Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Patch queued for 4.14, thanks. Best regards, -- Bartlomiej Zolnierkiewicz Samsung R&D Institute Poland Samsung Electronics ^ permalink raw reply [flat|nested] 2+ messages in thread
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2017-08-08 22:17 ` [PATCH] video: fbdev: pxa3xx_gcu: fix error return code in pxa3xx_gcu_probe() Gustavo A. R. Silva
2017-08-21 14:17 ` Bartlomiej Zolnierkiewicz
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