Commit 115bbb11 authored by Dave Jones's avatar Dave Jones Committed by Linus Torvalds

[PATCH] Missing copy_from_user check in comx driver

parent bd3fda33
......@@ -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;
}
......
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