[PATCH] drm/panthor: Fix error code in panthor_gpu_init()

[Dan Carpenter]

This code accidentally returns zero/success on error because of a typo.
It should be "irq" instead of "ret".  The other thing is that if
platform_get_irq_byname() were to return zero then the error code would
be cmplicated.  Fortunately, it does not so we can just change <= to
< 0.

Fixes: 5cd894e258c4 ("drm/panthor: Add the GPU logical block")
Signed-off-by: Dan Carpenter <dan.carpen...@linaro.org>
---
 drivers/gpu/drm/panthor/panthor_gpu.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/panthor/panthor_gpu.c 
b/drivers/gpu/drm/panthor/panthor_gpu.c
index 0f7c962440d3..5251d8764e7d 100644
--- a/drivers/gpu/drm/panthor/panthor_gpu.c
+++ b/drivers/gpu/drm/panthor/panthor_gpu.c
@@ -211,8 +211,8 @@ int panthor_gpu_init(struct panthor_device *ptdev)
                return ret;
 
        irq = platform_get_irq_byname(to_platform_device(ptdev->base.dev), 
"gpu");
-       if (irq <= 0)
-               return ret;
+       if (irq < 0)
+               return irq;
 
        ret = panthor_request_gpu_irq(ptdev, &ptdev->gpu->irq, irq, 
GPU_INTERRUPTS_MASK);
        if (ret)
-- 
2.43.0