From: YueHaibing <yuehaibing@huawei.com>
Date: Thu, 20 Dec 2018 18:13:08 +0000 (+0100)
Subject: video: fbdev: pxafb: Fix "WARNING: invalid free of devm_ allocated data"
X-Git-Tag: v5.0-rc1~15^2~9
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=2607391882fca37463187e7f2a9c76dec286947e;p=linux.git

video: fbdev: pxafb: Fix "WARNING: invalid free of devm_ allocated data"

'info->modes' got allocated with devm_kcalloc in of_get_pxafb_display.

This gives this error message:
  ./drivers/video/fbdev/pxafb.c:2238:2-7: WARNING: invalid free of devm_ allocated data

Fixes: c8f96304ec8b4 ("video: fbdev: pxafb: switch to devm_* API")
Cc: stable@kernel.org [v4.19+]
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Reviewed-by: Daniel Mack <daniel@zonque.org>
Cc: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
---

diff --git a/drivers/video/fbdev/pxafb.c b/drivers/video/fbdev/pxafb.c
index bbed039617a4..d59c8a59f582 100644
--- a/drivers/video/fbdev/pxafb.c
+++ b/drivers/video/fbdev/pxafb.c
@@ -2234,10 +2234,8 @@ static struct pxafb_mach_info *of_pxafb_of_mach_info(struct device *dev)
 	if (!info)
 		return ERR_PTR(-ENOMEM);
 	ret = of_get_pxafb_mode_info(dev, info);
-	if (ret) {
-		kfree(info->modes);
+	if (ret)
 		return ERR_PTR(ret);
-	}
 
 	/*
 	 * On purpose, neither lccrX registers nor video memory size can be