From 1ee47b0ae83e3cae2f9362113b3935898fdb3ea9 Mon Sep 17 00:00:00 2001 From: Balaji T K Date: Wed, 25 Apr 2012 17:27:46 +0530 Subject: 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 Reported-by: Santosh Shilimkar Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/board-omap4panda.c | 49 ---------------------------------- 1 file changed, 49 deletions(-) (limited to 'arch/arm/mach-omap2/board-omap4panda.c') diff --git a/arch/arm/mach-omap2/board-omap4panda.c b/arch/arm/mach-omap2/board-omap4panda.c index 1b782ba5343..c148472a79b 100644 --- a/arch/arm/mach-omap2/board-omap4panda.c +++ b/arch/arm/mach-omap2/board-omap4panda.c @@ -236,55 +236,6 @@ struct wl12xx_platform_data omap_panda_wlan_data __initdata = { .board_ref_clock = 2, }; -static int omap4_twl6030_hsmmc_late_init(struct device *dev) -{ - int irq = 0; - struct platform_device *pdev = container_of(dev, - struct platform_device, dev); - struct omap_mmc_platform_data *pdata = dev->platform_data; - - if (!pdata) { - dev_err(dev, "%s: NULL platform data\n", __func__); - return -EINVAL; - } - /* Setting MMC1 Card detect Irq */ - if (pdev->id == 0) { - irq = twl6030_mmc_card_detect_config(); - if (irq < 0) { - dev_err(dev, "%s: Error card detect config(%d)\n", - __func__, irq); - return irq; - } - pdata->slots[0].card_detect = twl6030_mmc_card_detect; - } - return 0; -} - -static __init void omap4_twl6030_hsmmc_set_late_init(struct device *dev) -{ - struct omap_mmc_platform_data *pdata; - - /* dev can be null if CONFIG_MMC_OMAP_HS is not set */ - if (!dev) { - pr_err("Failed omap4_twl6030_hsmmc_set_late_init\n"); - return; - } - pdata = dev->platform_data; - - pdata->init = omap4_twl6030_hsmmc_late_init; -} - -static int __init omap4_twl6030_hsmmc_init(struct omap2_hsmmc_info *controllers) -{ - struct omap2_hsmmc_info *c; - - omap_hsmmc_init(controllers); - for (c = controllers; c->mmc; c++) - omap4_twl6030_hsmmc_set_late_init(&c->pdev->dev); - - return 0; -} - static struct twl6040_codec_data twl6040_codec = { /* single-step ramp for headset and handsfree */ .hs_left_step = 0x0f, -- cgit v1.2.3-70-g09d2