sx.c: avoid referencing freed memory if copy_from_user() fails

The "break" would just result in reusing a free'd pointer.  I don't have
the cards myself to test it though.  :/

Signed-off-by: Dan Carpenter <error27@gmail.com>
Cc: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/char/sx.c b/drivers/char/sx.c
index d7c416566bd9..518f2a25d91e 100644
--- a/drivers/char/sx.c
+++ b/drivers/char/sx.c
@@ -1789,7 +1789,7 @@ static long sx_fw_ioctl(struct file *filp, unsigned int cmd,
                                                 nbytes - i : SX_CHUNK_SIZE)) {
                                         kfree(tmp);
                                         rc = -EFAULT;
-                                        break;
+                                        goto out;
                                 }
                                 memcpy_toio(board->base2 + offset + i, tmp,
                                                 (i + SX_CHUNK_SIZE > nbytes) ?