From 64279c7e05264f9774c6c9ee65a5b9ed186e442b Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Wed, 8 Jul 2015 17:45:06 +0300 Subject: [PATCH] x86/platform/iosf_mbi: Check return value of debugfs_create properly The code checks the result of the first debugfs_create call several times and fails to check the result of the subsequent calls due to missing assigments. Add the missing assignments and check only for !res because debugfs_create() returns only NULL on error and not an encoded error code. [ tglx: Massaged changelog ] Signed-off-by: Andy Shevchenko Cc: David E . Box Link: http://lkml.kernel.org/r/1436366709-17683-3-git-send-email-andriy.shevchenko@linux.intel.com Signed-off-by: Thomas Gleixner --- arch/x86/platform/intel/iosf_mbi.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/arch/x86/platform/intel/iosf_mbi.c b/arch/x86/platform/intel/iosf_mbi.c index 82f8d02f0df2..2362da912414 100644 --- a/arch/x86/platform/intel/iosf_mbi.c +++ b/arch/x86/platform/intel/iosf_mbi.c @@ -240,17 +240,17 @@ static void iosf_sideband_debug_init(void) /* mdr */ d = debugfs_create_x32("mdr", 0660, iosf_dbg, &dbg_mdr); - if (IS_ERR_OR_NULL(d)) + if (!d) goto cleanup; /* mcrx */ - debugfs_create_x32("mcrx", 0660, iosf_dbg, &dbg_mcrx); - if (IS_ERR_OR_NULL(d)) + d = debugfs_create_x32("mcrx", 0660, iosf_dbg, &dbg_mcrx); + if (!d) goto cleanup; /* mcr - initiates mailbox tranaction */ - debugfs_create_file("mcr", 0660, iosf_dbg, &dbg_mcr, &iosf_mcr_fops); - if (IS_ERR_OR_NULL(d)) + d = debugfs_create_file("mcr", 0660, iosf_dbg, &dbg_mcr, &iosf_mcr_fops); + if (!d) goto cleanup; return;