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USB: gadget: u_ether: Fix a configfs return code
If the string is invalid, this should return -EINVAL instead of 0.
Fixes: 73517cf49b
("usb: gadget: add RNDIS configfs options for class/subclass/protocol")
Cc: stable <stable@vger.kernel.org>
Acked-by: Lorenzo Colitti <lorenzo@google.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/YCqZ3P53yyIg5cn7@mwanda
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
parent
1edbff9c80
commit
650bf52208
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@ -182,12 +182,11 @@ out: \
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size_t len) \
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{ \
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struct f_##_f_##_opts *opts = to_f_##_f_##_opts(item); \
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int ret; \
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int ret = -EINVAL; \
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u8 val; \
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\
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mutex_lock(&opts->lock); \
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ret = sscanf(page, "%02hhx", &val); \
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if (ret > 0) { \
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if (sscanf(page, "%02hhx", &val) > 0) { \
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opts->_n_ = val; \
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ret = len; \
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} \
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