tree 75bdd171ab74db4211e576babc1c803b09993611
parent 2e7486a05b81a182c106486ba0b7b91762390103
author Johan Hovold <johan@kernel.org> 1489408822 +0100
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1490859684 +0200

mmc: ushc: fix NULL-deref at probe

commit 181302dc7239add8ab1449c23ecab193f52ee6ab upstream.

Make sure to check the number of endpoints to avoid dereferencing a
NULL-pointer should a malicious device lack endpoints.

Fixes: 53f3a9e26ed5 ("mmc: USB SD Host Controller (USHC) driver")
Cc: David Vrabel <david.vrabel@csr.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>