From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dan Carpenter Subject: [patch -mainline] sfc: fix a timeout loop Date: Tue, 15 Dec 2015 14:06:08 +0300 Message-ID: <20151215110608.GA10007@mwanda> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Shradha Shah , netdev@vger.kernel.org, kernel-janitors@vger.kernel.org To: Solarflare linux maintainers Return-path: Content-Disposition: inline Sender: kernel-janitors-owner@vger.kernel.org List-Id: netdev.vger.kernel.org We test for if "tries" is zero at the end but "tries--" is a post-op so it will end with "tries" set to -1. I have changed it to a pre-op instead. Signed-off-by: Dan Carpenter diff --git a/drivers/net/ethernet/sfc/txc43128_phy.c b/drivers/net/ethernet/sfc/txc43128_phy.c index 3d5ee32..194f67d 100644 --- a/drivers/net/ethernet/sfc/txc43128_phy.c +++ b/drivers/net/ethernet/sfc/txc43128_phy.c @@ -418,7 +418,7 @@ static void txc_reset_logic_mmd(struct efx_nic *efx, int mmd) val |= (1 << TXC_GLCMD_LMTSWRST_LBN); efx_mdio_write(efx, mmd, TXC_GLRGS_GLCMD, val); - while (tries--) { + while (--tries) { val = efx_mdio_read(efx, mmd, TXC_GLRGS_GLCMD); if (!(val & (1 << TXC_GLCMD_LMTSWRST_LBN))) break;