From acb20d7395f75b0fdb5b300f9fb3b9c6054fb04f Mon Sep 17 00:00:00 2001 From: David Cohen Date: Thu, 16 Jan 2014 15:07:02 -0800 Subject: [PATCH] x86, intel-mid: sfi_handle_*_dev() should check for pdata error code When Intel MID finds a match between SFI table from FW and registered SFI devices, it will always register a device regardless the platform code was successful or not. This patch adds an extra option for platform code to return error code and abort device registration on SFI table parsing. This patch does not contain any functional changes for current intel mid platform code. Signed-off-by: David Cohen Link: http://lkml.kernel.org/r/1389913624-9149-2-git-send-email-david.a.cohen@linux.intel.com Signed-off-by: H. Peter Anvin --- arch/x86/platform/intel-mid/sfi.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/x86/platform/intel-mid/sfi.c b/arch/x86/platform/intel-mid/sfi.c index 80a52288555c..1d5d20b088fa 100644 --- a/arch/x86/platform/intel-mid/sfi.c +++ b/arch/x86/platform/intel-mid/sfi.c @@ -337,6 +337,8 @@ static void __init sfi_handle_ipc_dev(struct sfi_device_table_entry *pentry, pr_debug("IPC bus, name = %16.16s, irq = 0x%2x\n", pentry->name, pentry->irq); pdata = intel_mid_sfi_get_pdata(dev, pentry); + if (IS_ERR(pdata)) + return; pdev = platform_device_alloc(pentry->name, 0); if (pdev == NULL) { @@ -370,6 +372,8 @@ static void __init sfi_handle_spi_dev(struct sfi_device_table_entry *pentry, spi_info.chip_select); pdata = intel_mid_sfi_get_pdata(dev, &spi_info); + if (IS_ERR(pdata)) + return; spi_info.platform_data = pdata; if (dev->delay) @@ -395,6 +399,8 @@ static void __init sfi_handle_i2c_dev(struct sfi_device_table_entry *pentry, i2c_info.addr); pdata = intel_mid_sfi_get_pdata(dev, &i2c_info); i2c_info.platform_data = pdata; + if (IS_ERR(pdata)) + return; if (dev->delay) intel_scu_i2c_device_register(pentry->host_num, &i2c_info); -- 2.39.5