From: Oleksij Rempel <ore@pengutronix.de>
To: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Barebox List <barebox@lists.infradead.org>
Subject: Re: [PATCH 1/4] usbgadget: autostart: Handle errors in file list gracefully
Date: Fri, 29 Sep 2017 15:02:36 +0200 [thread overview]
Message-ID: <20170929130236.z4pomza4utr654um@pengutronix.de> (raw)
In-Reply-To: <20170927091245.9476-2-s.hauer@pengutronix.de>
On Wed, Sep 27, 2017 at 11:12:42AM +0200, Sascha Hauer wrote:
> file_list_parse() can fail and returns an error pointer. Print
> an error message when it fails and also set to NULL again so
> that usb_multi_register() does not stumble upon the error pointer.
>
> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
> ---
> drivers/usb/gadget/autostart.c | 10 +++++++++-
> 1 file changed, 9 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/usb/gadget/autostart.c b/drivers/usb/gadget/autostart.c
> index 465d8fd380..3fa43137fa 100644
> --- a/drivers/usb/gadget/autostart.c
> +++ b/drivers/usb/gadget/autostart.c
> @@ -11,6 +11,8 @@
> * GNU General Public License for more details.
> *
> */
> +#define pr_fmt(fmt) "usbgadget autostart: " fmt
> +
> #include <common.h>
> #include <command.h>
> #include <errno.h>
> @@ -42,8 +44,14 @@ static int usbgadget_autostart(void)
> opts = xzalloc(sizeof(*opts));
> opts->release = usb_multi_opts_release;
>
> - if (fastboot_function)
> + if (fastboot_function) {
> opts->fastboot_opts.files = file_list_parse(fastboot_function);
> + if (IS_ERR(opts->fastboot_opts.files)) {
> + pr_err("Parsing file list \"%s\" failed: %s\n", fastboot_function,
> + strerrorp(opts->fastboot_opts.files));
> + opts->fastboot_opts.files = NULL;
> + }
> + }
>
> opts->create_acm = acm;
Reviewed-by: Oleksij Rempel <o.rempel@pengutronix.de>
--
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next prev parent reply other threads:[~2017-09-29 13:03 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-27 9:12 usbgadget fix some crashes Sascha Hauer
2017-09-27 9:12 ` [PATCH 1/4] usbgadget: autostart: Handle errors in file list gracefully Sascha Hauer
2017-09-29 13:02 ` Oleksij Rempel [this message]
2017-09-27 9:12 ` [PATCH 2/4] usbgadget: do not register when no functions present Sascha Hauer
2017-09-29 13:05 ` Oleksij Rempel
2017-09-27 9:12 ` [PATCH 3/4] usbgadget: only set to peripheral mode when error checking is done Sascha Hauer
2017-09-29 13:06 ` Oleksij Rempel
2017-09-27 9:12 ` [PATCH 4/4] usbgadget: unregister when usb_composite_probe() fails Sascha Hauer
2017-09-29 13:08 ` Oleksij Rempel
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