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authorJames Bottomley <James.Bottomley@HansenPartnership.com>2008-05-13 19:10:15 +0000
committerGreg Kroah-Hartman <gregkh@suse.de>2008-05-15 07:50:07 -0700
commit22f995e70a88761b1f15cb0bec8eb79ccf7e0a60 (patch)
tree7147005a8d6de1171e5b2c452dddde464b23d7b8
parentbfee08b351f67cf73aa87dce89aa56c0987b609c (diff)
SCSI: aha152x: Fix oops on module removal
commit 64976a0387835a7ac61bbe2a99b27ccae34eac5d upstream Reported-by: Frank de Jong <frapex@xs4all.nl> > after trying to unload the module: > BUG: unable to handle kernel paging request at 00100100 > IP: [<fb9ff667>] :aha152x:aha152x_exit+0x47/0x6a > *pde = 00000000 > Oops: 0000 [#1] PREEMPT SMP > Modules linked in: aha152x(-) w83781d hwmon_vid tun ne 8390 bonding > usb_storage snd_usb_audio snd_usb_lib snd_rawmidi pwc snd_seq_device > compat_ioctl32 snd_hwdep videodev v4l1_compat 3c59x mii intel_agp > agpgart snd_pcm_oss snd_pcm snd_timer snd_page_alloc snd_mixer_oss snd > > Pid: 2837, comm: rmmod Not tainted (2.6.25.3 #1) > EIP: 0060:[<fb9ff667>] EFLAGS: 00210212 CPU: 0 > EIP is at aha152x_exit+0x47/0x6a [aha152x] > EAX: 00000001 EBX: 000ffdc4 ECX: f7c517a8 EDX: 00000001 > ESI: 00000000 EDI: 00000003 EBP: e7880000 ESP: e7881f58 > DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 > Process rmmod (pid: 2837, ti=e7880000 task=f27eb580 task.ti=e7880000) > Stack: fba03700 c01419d2 31616861 00783235 e795ee70 c0157709 b7f24000 e79ae000 > c0158271 ffffffff b7f25000 e79ae004 e795e370 b7f25000 e795e37c e795e370 > 009ae000 fba03700 00000880 e7881fa8 00000000 bf93ec20 bf93ec20 c0102faa > Call Trace: > [<c01419d2>] sys_delete_module+0x112/0x1a0 > [<c0157709>] remove_vma+0x39/0x50 > [<c0158271>] do_munmap+0x181/0x1f0 > [<c0102faa>] sysenter_past_esp+0x5f/0x85 > [<c0490000>] rsc_parse+0x0/0x3c0 The problem is that the driver calls aha152x_release() under a list_for_each_entry(). Unfortunately, aha152x_release() deletes from the list in question. Fix this by using list_for_each_entry_safe(). Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
-rw-r--r--drivers/scsi/aha152x.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/scsi/aha152x.c b/drivers/scsi/aha152x.c
index 6ccdc96cc480..660b88f41648 100644
--- a/drivers/scsi/aha152x.c
+++ b/drivers/scsi/aha152x.c
@@ -3919,9 +3919,9 @@ static int __init aha152x_init(void)
static void __exit aha152x_exit(void)
{
- struct aha152x_hostdata *hd;
+ struct aha152x_hostdata *hd, *tmp;
- list_for_each_entry(hd, &aha152x_host_list, host_list) {
+ list_for_each_entry_safe(hd, tmp, &aha152x_host_list, host_list) {
struct Scsi_Host *shost = container_of((void *)hd, struct Scsi_Host, hostdata);
aha152x_release(shost);