diff options
| author | Heiko Stuebner <heiko@sntech.de> | 2015-04-20 01:00:53 +0200 |
|---|---|---|
| committer | Mark Yao <mark.yao@rock-chips.com> | 2015-04-20 09:02:31 +0800 |
| commit | 3ea68922fc4148abc97557df43d4ba9a136b1c8d (patch) | |
| tree | 68738f2926b5c5fc0d6bc7318d52499cc87294d2 | |
| parent | 625e03461ba51592ac785214b2254af7bd630077 (diff) | |
| download | linux-stable-3ea68922fc4148abc97557df43d4ba9a136b1c8d.tar.gz linux-stable-3ea68922fc4148abc97557df43d4ba9a136b1c8d.tar.bz2 linux-stable-3ea68922fc4148abc97557df43d4ba9a136b1c8d.zip | |
drm/rockchip: fix error check when getting irq
platform_get_irq() can return negative error values and we already test for
these. Therefore the variable holding this value should be signed to not
loose possible error values.
Reported-by: David Binderman <dcb314@hotmail.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-By: Daniel Kurtz <djkurtz@chromium.org>
| -rw-r--r-- | drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c index ccb0ce073ef2..4557f335a8a5 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c @@ -1409,7 +1409,7 @@ static int vop_bind(struct device *dev, struct device *master, void *data) struct vop *vop; struct resource *res; size_t alloc_size; - int ret; + int ret, irq; of_id = of_match_device(vop_driver_dt_match, dev); vop_data = of_id->data; @@ -1445,11 +1445,12 @@ static int vop_bind(struct device *dev, struct device *master, void *data) return ret; } - vop->irq = platform_get_irq(pdev, 0); - if (vop->irq < 0) { + irq = platform_get_irq(pdev, 0); + if (irq < 0) { dev_err(dev, "cannot find irq for vop\n"); - return vop->irq; + return irq; } + vop->irq = (unsigned int)irq; spin_lock_init(&vop->reg_lock); spin_lock_init(&vop->irq_lock); |