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

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commit 2607391882 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: c8f96304ec ("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>
This commit is contained in:
YueHaibing 2018-12-20 19:13:08 +01:00 committed by Greg Kroah-Hartman
parent 9797226bf6
commit c1aa0c845c
1 changed files with 1 additions and 3 deletions
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4
drivers/video/fbdev/pxafb.c
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@ -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