From 709107fcd3c4ad82ff7c8137c27aa951d671706f Mon Sep 17 00:00:00 2001 From: Harvey Harrison Date: Wed, 30 Apr 2008 00:53:51 -0700 Subject: [PATCH] char: rocket.c: fix sparse variable shadowing and int as NULL pointer Nested min() macros shadow _x, separate into two lines. drivers/char/rocket.c:451:7: warning: symbol '_x' shadows an earlier one drivers/char/rocket.c:451:7: originally declared here drivers/char/rocket.c:451:7: warning: symbol '_x' shadows an earlier one drivers/char/rocket.c:451:7: originally declared here drivers/char/rocket.c:451:7: warning: symbol '_y' shadows an earlier one drivers/char/rocket.c:451:7: originally declared here drivers/char/rocket.c:1754:7: warning: symbol '_x' shadows an earlier one drivers/char/rocket.c:1754:7: originally declared here drivers/char/rocket.c:1754:7: warning: symbol '_x' shadows an earlier one drivers/char/rocket.c:1754:7: originally declared here drivers/char/rocket.c:1754:7: warning: symbol '_y' shadows an earlier one drivers/char/rocket.c:1754:7: originally declared here drivers/char/rocket.c:1751:20: warning: Using plain integer as NULL pointer Signed-off-by: Harvey Harrison Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/char/rocket.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/char/rocket.c b/drivers/char/rocket.c index 1b3fc6f..32fe8dc 100644 --- a/drivers/char/rocket.c +++ b/drivers/char/rocket.c @@ -449,7 +449,8 @@ static void rp_do_transmit(struct r_port *info) while (1) { if (tty->stopped || tty->hw_stopped) break; - c = min(info->xmit_fifo_room, min(info->xmit_cnt, XMIT_BUF_SIZE - info->xmit_tail)); + c = min(info->xmit_fifo_room, info->xmit_cnt); + c = min(c, XMIT_BUF_SIZE - info->xmit_tail); if (c <= 0 || info->xmit_fifo_room <= 0) break; sOutStrW(sGetTxRxDataIO(cp), (unsigned short *) (info->xmit_buf + info->xmit_tail), c / 2); @@ -1758,10 +1759,10 @@ static int rp_write(struct tty_struct *tty, /* Write remaining data into the port's xmit_buf */ while (1) { - if (!info->tty) /* Seemingly obligatory check... */ + if (!info->tty) /* Seemingly obligatory check... */ goto end; - - c = min(count, min(XMIT_BUF_SIZE - info->xmit_cnt - 1, XMIT_BUF_SIZE - info->xmit_head)); + c = min(count, XMIT_BUF_SIZE - info->xmit_cnt - 1); + c = min(c, XMIT_BUF_SIZE - info->xmit_head); if (c <= 0) break; -- 2.7.4