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H A D | hgafb.c | dc13cac4 Mon May 03 06:57:06 CDT 2021 Igor Matheus Andrade Torrente <igormtorrente@gmail.com> video: hgafb: fix potential NULL pointer dereference
The return of ioremap if not checked, and can lead to a NULL to be assigned to hga_vram. Potentially leading to a NULL pointer dereference.
The fix adds code to deal with this case in the error label and changes how the hgafb_probe handles the return of hga_card_detect.
Cc: Ferenc Bakonyi <fero@drama.obuda.kando.hu> Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Igor Matheus Andrade Torrente <igormtorrente@gmail.com> Link: https://lore.kernel.org/r/20210503115736.2104747-40-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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