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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 <dan.carpenter@oracle.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Marek Vasut <marex@denx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
hifive-unleashed-5.1
Dan Carpenter 2013-08-21 11:30:08 +03:00 committed by Greg Kroah-Hartman
parent 234ad18249
commit df2da9a3fc
1 changed files with 3 additions and 2 deletions
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5
drivers/staging/imx-drm/ipu-v3/ipu-dc.c
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@ -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) {