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

commit 2607391882fca37463187e7f2a9c76dec286947e upstream.

'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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/video/fbdev/pxafb.c b/drivers/video/fbdev/pxafb.c
index bbed039..d59c8a5 100644 (file)
--- 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