From df2da9a3fc4b4aeb5c6250006a297f143ca7fcc3 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Wed, 21 Aug 2013 11:30:08 +0300 Subject: [PATCH] staging: drm/imx: ipu-dc: signedness bug in ipu_dc_init_sync() "map" needs to be signed for the error handling to work. In the success case then it holds a small non-negative value. Signed-off-by: Dan Carpenter Acked-by: Sascha Hauer Acked-by: Marek Vasut Signed-off-by: Greg Kroah-Hartman --- drivers/staging/imx-drm/ipu-v3/ipu-dc.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/staging/imx-drm/ipu-v3/ipu-dc.c b/drivers/staging/imx-drm/ipu-v3/ipu-dc.c index 59f03f9aefc3..21bf1c806528 100644 --- a/drivers/staging/imx-drm/ipu-v3/ipu-dc.c +++ b/drivers/staging/imx-drm/ipu-v3/ipu-dc.c @@ -161,14 +161,15 @@ int ipu_dc_init_sync(struct ipu_dc *dc, struct ipu_di *di, bool interlaced, u32 pixel_fmt, u32 width) { struct ipu_dc_priv *priv = dc->priv; - u32 reg = 0, map; + u32 reg = 0; + int map; dc->di = ipu_di_get_num(di); map = ipu_pixfmt_to_map(pixel_fmt); if (map < 0) { dev_dbg(priv->dev, "IPU_DISP: No MAP\n"); - return -EINVAL; + return map; } if (interlaced) { -- 2.30.2