From: Jean Delvare <khali@linux-fr.org>
Date: Tue, 8 May 2007 07:38:18 +0000 (-0700)
Subject: rivafb: handle I2C bus creation failure
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=5b358fe12f03a7822db6f376b608f996c664a952;p=openwrt%2Fstaging%2Fblogic.git

rivafb: handle I2C bus creation failure

I2C bus creation may fail, let rivafb handle that case properly.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Antonino Daplas <adaplas@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/drivers/video/riva/fbdev.c b/drivers/video/riva/fbdev.c
index a37189a227ac..b8d50f178ad5 100644
--- a/drivers/video/riva/fbdev.c
+++ b/drivers/video/riva/fbdev.c
@@ -1789,6 +1789,8 @@ static int __devinit riva_get_EDID_i2c(struct fb_info *info)
 	NVTRACE_ENTER();
 	riva_create_i2c_busses(par);
 	for (i = 0; i < par->bus; i++) {
+		if (!par->chan[i].par)
+			continue;
 		riva_probe_i2c_connector(par, i+1, &par->EDID);
 		if (par->EDID && !fb_parse_edid(par->EDID, &var)) {
 			printk(PFX "Found EDID Block from BUS %i\n", i);