lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Wed, 2 Aug 2017 11:17:41 +0800 From: Li Wei <liwei213@...wei.com> To: <ulf.hansson@...aro.org>, <adrian.hunter@...el.com>, <jh80.chung@...sung.com>, <shawn.lin@...k-chips.com>, <wsa+renesas@...g-engineering.com>, <hkallweit1@...il.com>, <linux-mmc@...r.kernel.org>, <linux-kernel@...r.kernel.org> CC: <guodong.xu@...aro.org> Subject: [PATCH v8 1/2] mmc: dw_mmc: move controller reset before driver init This commit modifies dw_mci_probe(), it moves reset assertion before drv_data->init(host) Some driver needs to access controller registers in its .init() ops. So, in order to make such access safe, we should do controller reset before .init() being called. Signed-off-by: Wei Li <liwei213@...wei.com> Signed-off-by: Guodong Xu <guodong.xu@...aro.org> Signed-off-by: Chen Jun <chenjun14@...wei.com> --- drivers/mmc/host/dw_mmc.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c index a9dfb26972f2..f2fa928e1a12 100644 --- a/drivers/mmc/host/dw_mmc.c +++ b/drivers/mmc/host/dw_mmc.c @@ -3067,6 +3067,12 @@ int dw_mci_probe(struct dw_mci *host) goto err_clk_ciu; } + if (!IS_ERR(host->pdata->rstc)) { + reset_control_assert(host->pdata->rstc); + usleep_range(10, 50); + reset_control_deassert(host->pdata->rstc); + } + if (drv_data && drv_data->init) { ret = drv_data->init(host); if (ret) { @@ -3076,12 +3082,6 @@ int dw_mci_probe(struct dw_mci *host) } } - if (!IS_ERR(host->pdata->rstc)) { - reset_control_assert(host->pdata->rstc); - usleep_range(10, 50); - reset_control_deassert(host->pdata->rstc); - } - setup_timer(&host->cmd11_timer, dw_mci_cmd11_timer, (unsigned long)host); -- 2.11.0
Powered by blists - more mailing lists