diff options
author | Ulf Hansson <ulf.hansson@linaro.org> | 2016-01-25 13:01:29 +0100 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-01-17 09:35:28 +0100 |
commit | ea6f411117e16f01c363042c4f2fb25655e52483 (patch) | |
tree | 2b073bf7939ab6d9b1fd59eed90b0b2692f77fc5 /drivers/usb/early | |
parent | 829b82508c55d58f585ae8dbf692351fc2dee775 (diff) |
usb: musb: ux500: Fix NULL pointer dereference at system PM
commit 79c5623f1cb85f33403eb9f1e45124e9f56181f8 upstream.
The commit 7d32cdef5356 ("usb: musb: fail with error when no DMA
controller set"), caused the core platform driver to correctly return an
error code when fail probing.
Unfurtante it also caused bug for a NULL pointer dereference, during
system suspend for the ux500 driver. The reason is a lacking validation
of the corresponding ->driver_data pointer, which won't be set when the
musb core driver fails to probe (or haven't yet been probed).
Fixes: 7d32cdef5356 ("usb: musb: fail with error when no DMA...")
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/early')
0 files changed, 0 insertions, 0 deletions