diff options
| -rw-r--r-- | drivers/ufs/ufs-uclass.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/ufs/ufs-uclass.c b/drivers/ufs/ufs-uclass.c index 81fd431f951..6a51f337e47 100644 --- a/drivers/ufs/ufs-uclass.c +++ b/drivers/ufs/ufs-uclass.c @@ -1751,7 +1751,15 @@ static int ufshcd_read_string_desc(struct ufs_hba *hba, int desc_index, goto out; } - buff_ascii = kmalloc(ascii_len, GFP_KERNEL); + /* + * utf-8 is encoded using up to 4-Bytes per character, + * however, we only allocate such a buffer because the + * utf16_to_utf8() converts the entire $ascii_len worth + * of input characters into up to 4-Byte long utf-8 + * characters. The rest of the function uses only up to + * $ascii_len bytes of that utf-8 string. + */ + buff_ascii = kmalloc(ascii_len * 4, GFP_KERNEL); if (!buff_ascii) { err = -ENOMEM; goto out; |