• Helge Deller's avatar
    parisc: Fix map_pages() to not overwrite existing pte entries · 3c229b3f
    Helge Deller authored
    Fix a long-existing small nasty bug in the map_pages() implementation which
    leads to overwriting already written pte entries with zero, *if* map_pages() is
    called a second time with an end address which isn't aligned on a pmd boundry.
    This happens for example if we want to remap only the text segment read/write
    in order to run alternative patching on the code. Exiting the loop when we
    reach the end address fixes this.
    
    Cc: stable@vger.kernel.org
    Signed-off-by: default avatarHelge Deller <deller@gmx.de>
    3c229b3f
init.c 23.9 KB