From: peter.chen@freescale.com (Peter Chen)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v9 9/9] usb: chipidea: imx: fix the error that using uninitialized pointer
Date: Sun, 17 Feb 2013 17:24:43 +0800 [thread overview]
Message-ID: <1361093083-22940-10-git-send-email-peter.chen@freescale.com> (raw)
In-Reply-To: <1361093083-22940-1-git-send-email-peter.chen@freescale.com>
If the core's probe fails, the platform layer may not get core's
private data, if the platform tries to use struct ci13xxx, it will
use uninitialized pointer. Besides, if the core's probe fails,
the platform layer should know it, and let its probe fail too.
Signed-off-by: Peter Chen <peter.chen@freescale.com>
---
drivers/usb/chipidea/ci13xxx_imx.c | 5 +++--
1 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/chipidea/ci13xxx_imx.c b/drivers/usb/chipidea/ci13xxx_imx.c
index 5499cf8..8352679 100644
--- a/drivers/usb/chipidea/ci13xxx_imx.c
+++ b/drivers/usb/chipidea/ci13xxx_imx.c
@@ -227,8 +227,9 @@ static int ci13xxx_imx_probe(struct platform_device *pdev)
plat_ci = ci13xxx_add_device(&pdev->dev,
pdev->resource, pdev->num_resources,
pdata);
- if (IS_ERR(plat_ci)) {
- ret = PTR_ERR(plat_ci);
+ pdata = plat_ci->dev.platform_data;
+ ret = pdata->probe_retval;
+ if (ret) {
dev_err(&pdev->dev,
"Can't register ci_hdrc platform device, err=%d\n",
ret);
--
1.7.0.4
next prev parent reply other threads:[~2013-02-17 9:24 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-17 9:24 [PATCH v9 0/9] Add tested id switch and vbus connect detect support for Chipidea Peter Chen
2013-02-17 9:24 ` [PATCH v9 1/9] Revert "USB: chipidea: add vbus detect for udc" Peter Chen
2013-02-17 9:24 ` [PATCH v9 2/9] usb: chipidea: add otg file Peter Chen
2013-02-17 9:24 ` [PATCH v9 3/9] usb: chipidea: add otg id switch and vbus connect/disconnect detect Peter Chen
2013-02-17 9:24 ` [PATCH v9 4/9] usb: chipidea: udc: add pullup/pulldown dp at hw_device_state Peter Chen
2013-02-17 9:24 ` [PATCH v9 5/9] usb: chipidea: udc: retire the flag CI13_PULLUP_ON_VBUS Peter Chen
2013-02-17 9:24 ` [PATCH v9 6/9] usb: chipidea: imx: add internal vbus regulator control Peter Chen
2013-02-17 9:24 ` [PATCH v9 7/9] usb: chipidea: udc: fix the oops when plugs in usb cable after rmmod gadget Peter Chen
2013-02-17 9:24 ` [PATCH v9 8/9] usb: chipidea: tell platform layer the ci core probe's result Peter Chen
2013-02-26 9:42 ` Felipe Balbi
2013-02-27 2:22 ` Peter Chen
2013-02-27 12:12 ` Felipe Balbi
2013-02-28 3:11 ` Peter Chen
2013-02-28 7:26 ` Felipe Balbi
2013-02-28 8:31 ` Peter Chen
2013-02-28 8:49 ` Felipe Balbi
2013-02-28 9:32 ` Alexander Shishkin
2013-02-28 10:06 ` Peter Chen
2013-02-28 10:45 ` Felipe Balbi
2013-03-01 1:45 ` Peter Chen
2013-03-01 6:29 ` Felipe Balbi
2013-02-28 10:42 ` Felipe Balbi
2013-02-28 11:55 ` Alexander Shishkin
2013-03-01 6:36 ` Felipe Balbi
2013-02-17 9:24 ` Peter Chen [this message]
2013-02-26 9:36 ` [PATCH v9 0/9] Add tested id switch and vbus connect detect support for Chipidea Peter Chen
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