From 154337688bfa970453836e65a27de011aba55331 Mon Sep 17 00:00:00 2001 From: Julian Calaby Date: Fri, 3 Dec 2010 17:56:45 +0000 Subject: sparc: prom: Sanitize return value from prom_nbputchar() Signed-off-by: Julian Calaby Signed-off-by: David S. Miller --- arch/sparc/prom/console_32.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/arch/sparc/prom/console_32.c b/arch/sparc/prom/console_32.c index 48863108a44c..b05e3db5fa63 100644 --- a/arch/sparc/prom/console_32.c +++ b/arch/sparc/prom/console_32.c @@ -27,13 +27,14 @@ static int prom_nbputchar(const char *buf) spin_lock_irqsave(&prom_lock, flags); switch(prom_vers) { case PROM_V0: - i = (*(romvec->pv_nbputchar))(*buf); + if ((*(romvec->pv_nbputchar))(*buf)) + i = 1; break; case PROM_V2: case PROM_V3: if ((*(romvec->pv_v2devops).v2_dev_write)(*romvec->pv_v2bootargs.fd_stdout, buf, 0x1) == 1) - i = 0; + i = 1; break; default: break; @@ -47,7 +48,7 @@ void prom_console_write_buf(const char *buf, int len) { while (len) { int n = prom_nbputchar(buf); - if (n) + if (n < 0) continue; len--; buf++; -- cgit v1.2.3