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wusb: fix error return code in wusb_prf() 

Fix to return error code -ENOMEM from the kmalloc() error handling
case instead of 0, as done elsewhere in this function.

Fixes: a19b882c07 ("wusb: Stop using the stack for sg crypto scratch space")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Wei Yongjun 2016-10-19 13:19:02 +00:00 committed by Greg Kroah-Hartman
parent 733cbe0698
commit 1ee1710cd6
1 changed files with 3 additions and 1 deletions
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4
drivers/usb/wusbcore/crypto.c
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@ -339,8 +339,10 @@ ssize_t wusb_prf(void *out, size_t out_size,
goto error_setkey_aes;
}
scratch = kmalloc(sizeof(*scratch), GFP_KERNEL);
if (!scratch)
if (!scratch) {
result = -ENOMEM;
goto error_alloc_scratch;
}
for (bitr = 0; bitr < (len + 63) / 64; bitr++) {
sfn_le = cpu_to_le64(sfn++);