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| author | Nicholas Bellinger <nab@linux-iscsi.org> | 2015-12-11 16:06:15 +0100 |
|---|---|---|
| committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2015-12-20 19:40:21 -0800 |
| commit | 894a2556e7691f87ee4b04e4a4b04a1814c572fa (patch) | |
| tree | eb736c13ba16d6bd2d2d4baa52528484daaf9357 /drivers/usb | |
| parent | 4fef4e43558af8e880356c2893616bcee8b32867 (diff) | |
| download | linux-894a2556e7691f87ee4b04e4a4b04a1814c572fa.tar.gz linux-894a2556e7691f87ee4b04e4a4b04a1814c572fa.tar.bz2 linux-894a2556e7691f87ee4b04e4a4b04a1814c572fa.zip | |
tcm_usb_gadget: Fix enabled attribute failure
Fix up tcm_usbg_tpg_store_enable() return value to propagate
usbg_attach() failure up to user-space if no HDC is found.
Reported-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/gadget/legacy/tcm_usb_gadget.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/drivers/usb/gadget/legacy/tcm_usb_gadget.c b/drivers/usb/gadget/legacy/tcm_usb_gadget.c index e90d3c917e0b..65e49504d1ac 100644 --- a/drivers/usb/gadget/legacy/tcm_usb_gadget.c +++ b/drivers/usb/gadget/legacy/tcm_usb_gadget.c @@ -1505,10 +1505,14 @@ static ssize_t tcm_usbg_tpg_enable_store(struct config_item *item, if (op > 1) return -EINVAL; - if (op && tpg->gadget_connect) + if (op && tpg->gadget_connect) { + ret = -EINVAL; goto out; - if (!op && !tpg->gadget_connect) + } + if (!op && !tpg->gadget_connect) { + ret = -EINVAL; goto out; + } if (op) { ret = usbg_attach(tpg); @@ -1518,8 +1522,10 @@ static ssize_t tcm_usbg_tpg_enable_store(struct config_item *item, usbg_detach(tpg); } tpg->gadget_connect = op; -out: + return count; +out: + return ret; } static ssize_t tcm_usbg_tpg_nexus_show(struct config_item *item, char *page) |