From: Balaji T K <balajitk@ti.com>
Date: Wed, 25 Apr 2012 11:57:46 +0000 (+0530)
Subject: ARM: OMAP4: hsmmc: check for null pointer
X-Git-Tag: omap-fixes-non-critical-for-v3.5~7
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1ee47b0ae83e3cae2f9362113b3935898fdb3ea9;p=pandora-kernel.git

ARM: OMAP4: hsmmc: check for null pointer

platform_device pdev can be NULL if CONFIG_MMC_OMAP_HS is not set.
Add check for NULL pointer. while at it move the duplicated functions
to omap4-common.c

Fixes the following boot crash seen with omap4sdp and omap4panda
when MMC is disabled.

Unable to handle kernel NULL pointer dereference at virtual address 0000008c
pgd = c0004000
[0000008c] *pgd=00000000
Internal error: Oops: 5 [#1] SMP ARM
Modules linked in:
CPU: 0    Not tainted  (3.4.0-rc1-05971-ga4dfa82 #4)
PC is at omap_4430sdp_init+0x184/0x410
LR is at device_add+0x1a0/0x664

Signed-off-by: Balaji T K <balajitk@ti.com>
Reported-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---

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