forked from luck/tmp_suning_uos_patched
sparc: prom: Sanitize return value from prom_nbputchar()
Signed-off-by: Julian Calaby <julian.calaby@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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23bcbf1b63
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154337688b
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@ -27,13 +27,14 @@ static int prom_nbputchar(const char *buf)
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spin_lock_irqsave(&prom_lock, flags);
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switch(prom_vers) {
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case PROM_V0:
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i = (*(romvec->pv_nbputchar))(*buf);
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if ((*(romvec->pv_nbputchar))(*buf))
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i = 1;
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break;
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case PROM_V2:
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case PROM_V3:
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if ((*(romvec->pv_v2devops).v2_dev_write)(*romvec->pv_v2bootargs.fd_stdout,
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buf, 0x1) == 1)
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i = 0;
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i = 1;
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break;
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default:
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break;
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@ -47,7 +48,7 @@ void prom_console_write_buf(const char *buf, int len)
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{
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while (len) {
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int n = prom_nbputchar(buf);
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if (n)
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if (n < 0)
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continue;
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len--;
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buf++;
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