diff --git a/drivers/net/wan/comx-hw-locomx.c b/drivers/net/wan/comx-hw-locomx.c index 320f15874171157186f101cfaed71dadd940f73e..45bf7f870848a02123efb75cc42e622e563fbf0b 100644 --- a/drivers/net/wan/comx-hw-locomx.c +++ b/drivers/net/wan/comx-hw-locomx.c @@ -339,7 +339,10 @@ static int locomx_write_proc(struct file *file, const char *buffer, return -ENOMEM; } - copy_from_user(page, buffer, count = min_t(unsigned long, count, PAGE_SIZE)); + if (copy_from_user(page, buffer, count = min_t(unsigned long, count, PAGE_SIZE))) { + free_page((unsigned long)page); + return -EBADF; + } if (*(page + count - 1) == '\n') { *(page + count - 1) = 0; }