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/?id=e330b9a6bb35dc7097a4f02cb1ae7b6f96df92af
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
---
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
