From a12415ff589ac5106e6b489f44c947b565fcb963 Mon Sep 17 00:00:00 2001 From: Konrad Rzeszutek Wilk Date: Wed, 11 Aug 2010 16:35:40 -0400 Subject: [PATCH] ibft: Kernel oops when rmmoding iscsi_ibft with no iBFT present. MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit We failed to check to see if actually allocated structures to contain the iBFT structure and went ahead to dereference it. This patch fixes the OOPS. Reported-by: "Jayamohan Kalickal"    Tested-by: "Jayamohan Kalickal" Signed-off-by: Konrad Rzeszutek Wilk Signed-off-by: Peter Jones   --- drivers/firmware/iscsi_ibft.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/firmware/iscsi_ibft.c b/drivers/firmware/iscsi_ibft.c index 4f04ec0410a0..6148a1c67895 100644 --- a/drivers/firmware/iscsi_ibft.c +++ b/drivers/firmware/iscsi_ibft.c @@ -727,8 +727,10 @@ static void ibft_unregister(void) static void ibft_cleanup(void) { - ibft_unregister(); - iscsi_boot_destroy_kset(boot_kset); + if (boot_kset) { + ibft_unregister(); + iscsi_boot_destroy_kset(boot_kset); + } } static void __exit ibft_exit(void) -- 2.20.1