• Thierry MERLE's avatar
    V4L/DVB (8876): budget: udelay changed to mdelay · db210426
    Thierry MERLE authored
    budget.ko fails to build on ARM with:
    
    ERROR: "__bad_udelay" [drivers/media/dvb/ttpci/budget.ko] undefined!
    make[1]: *** [__modpost] Error 1
    
    __bad_udelay is specifically designed on ARM to fail when udelay is
    called in a bad way.  arch/arm/include/asm/delay.h has this to say
    about __bad_udelay:
    
    /*
     * This function intentionally does not exist; if you see references to
     * it, it means that you're calling udelay() with an out of range value.
     *
     * With currently imposed limits, this means that we support a max delay
     * of 2000us. Further limits: HZ<=1000 and bogomips<=3355
     */
    extern void __bad_udelay(void);
    
    Solution is to replace udelay by a mdelay and udelay with value less than 2000
    Acked-by: default avatarOliver Endriss <o.endriss@gmx.de>
    Signed-off-by: default avatarThierry MERLE <thierry.merle@free.fr>
    Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
    db210426
budget.c 19.2 KB