From: Sascha Hauer <s.hauer@pengutronix.de>
To: Barebox List <barebox@lists.infradead.org>
Cc: Oleksij Rempel <ore@pengutronix.de>
Subject: [PATCH 1/4] usbgadget: autostart: Handle errors in file list gracefully
Date: Wed, 27 Sep 2017 11:12:42 +0200 [thread overview]
Message-ID: <20170927091245.9476-2-s.hauer@pengutronix.de> (raw)
In-Reply-To: <20170927091245.9476-1-s.hauer@pengutronix.de>
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;
--
2.11.0
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next prev parent reply other threads:[~2017-09-27 9:13 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 ` Sascha Hauer [this message]
2017-09-29 13:02 ` [PATCH 1/4] usbgadget: autostart: Handle errors in file list gracefully Oleksij Rempel
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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