Hello,
I have taken another look at the implementation of the function “tve200_probe”.
A software analysis approach points the following source code out for
further development considerations.
https://elixir.bootlin.com/linux/v5.6.3/source/drivers/gpu/drm/tve200/tve200_drv.c#L212
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/gpu/drm/tve200/tve200_drv.c?id=5d30bcacd91af6874481129797af364a53cd9b46#n212
irq = platform_get_irq(pdev, 0);
if (!irq) {
ret = -EINVAL;
goto clk_disable;
}
The software documentation is providing the following information
for the used programming interface.
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/base/platform.c?id=5d30bcacd91af6874481129797af364a53cd9b46#n221
https://elixir.bootlin.com/linux/v5.6.3/source/drivers/base/platform.c#L202
“…
* Return: IRQ number on success, negative error number on failure.
…”
Would you like to reconsider the shown condition check?
Regards,
Markus
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