Commit 85b00e35 authored by Dave Jones's avatar Dave Jones Committed by Linus Torvalds

[PATCH] missing copy_from_user check in munich driver

parent 3bff8cb9
......@@ -2414,7 +2414,10 @@ static int munich_write_proc(struct file *file, const char *buffer,
return -ENOMEM;
/* Copy user data and cut trailing \n */
copy_from_user(page, buffer, count = min(count, PAGE_SIZE));
if (copy_from_user(page, buffer, count = min(count, PAGE_SIZE))) {
free_page((unsigned long)page);
return -EFAULT;
}
if (*(page + count - 1) == '\n')
*(page + count - 1) = 0;
*(page + PAGE_SIZE - 1) = 0;
......
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