mmc: dw_mmc: fix multiple drv_data NULL dereferences
authorJames Hogan <james.hogan@imgtec.com>
Tue, 16 Oct 2012 08:43:08 +0000 (09:43 +0100)
committerChris Ball <cjb@laptop.org>
Wed, 7 Nov 2012 19:55:31 +0000 (14:55 -0500)
commitcb27a843de9e3a0a2e4b7e631da4679d38f49cee
tree5b8ecf1db605f4a619c370521ae557d9d6a5ef68
parent2da1d7f2948900cd50d38643db39f790edb3cc96
mmc: dw_mmc: fix multiple drv_data NULL dereferences

800d78bfccb3d ("mmc: dw_mmc: add support for implementation specific
callbacks") -- merged in v3.7-rc1 -- introduced multiple NULL pointer
dereferences when the default dw_mci_pltfm_probe() is used, as it sets
host->drv_data to NULL, and that's only checked against NULL in 1 out of
the 7 cases where it is dereferenced.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Acked-by: Will Newton <will.newton@imgtec.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
drivers/mmc/host/dw_mmc-pltfm.c
drivers/mmc/host/dw_mmc.c