[PATCH] drm/pl111: Fix missing unwind goto in pl111_amba_probe()

[Harshit Mogalapalli]

Smatch reports:
        drivers/gpu/drm/pl111/pl111_drv.c:300
        pl111_amba_probe() warn: missing unwind goto?

When devm_request_irq() returns non-zero value, we need to drop the
reference for drm device and also release reserved memory which is
done in "dev_put" label. So instead of directly returning, goto dev_put
to fix this bug.

Fixes: bed41005e617 ("drm/pl111: Initial drm/kms driver for pl111")
Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapa...@oracle.com>
---
This is based on static analysis, Only Compile tested.
---
 drivers/gpu/drm/pl111/pl111_drv.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/pl111/pl111_drv.c 
b/drivers/gpu/drm/pl111/pl111_drv.c
index 4b2a9e9753f6..72c5d3681b47 100644
--- a/drivers/gpu/drm/pl111/pl111_drv.c
+++ b/drivers/gpu/drm/pl111/pl111_drv.c
@@ -297,7 +297,7 @@ static int pl111_amba_probe(struct amba_device *amba_dev,
                               variant->name, priv);
        if (ret != 0) {
                dev_err(dev, "%s failed irq %d\n", __func__, ret);
-               return ret;
+               goto dev_put;
        }
 
        ret = pl111_modeset_init(drm);
-- 
2.38.1