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| author | Kashyap Desai <Kashyap.Desai@lsi.com> | 2012-07-17 18:20:44 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-09-14 10:00:50 -0700 |
| commit | b787880f60d492c28a5638bc7c59017c067377d3 (patch) | |
| tree | 4b9dfb205ca69fe41825702bcf1b0db7bc412c2f /drivers/scsi | |
| parent | 3ee8d648935cc63a611c454103419f2100d45c56 (diff) | |
| download | kernel_samsung_smdk4412-b787880f60d492c28a5638bc7c59017c067377d3.tar.gz kernel_samsung_smdk4412-b787880f60d492c28a5638bc7c59017c067377d3.tar.bz2 kernel_samsung_smdk4412-b787880f60d492c28a5638bc7c59017c067377d3.zip | |
SCSI: megaraid_sas: Move poll_aen_lock initializer
commit bd8d6dd43a77bfd2b8fef5b094b9d6095e169dee upstream.
The following patch moves the poll_aen_lock initializer from
megasas_probe_one() to megasas_init(). This prevents a crash when a user
loads the driver and tries to issue a poll() system call on the ioctl
interface with no adapters present.
Signed-off-by: Kashyap Desai <Kashyap.Desai@lsi.com>
Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/scsi')
| -rw-r--r-- | drivers/scsi/megaraid/megaraid_sas_base.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c index e6e30f4da1f..931cb11083c 100644 --- a/drivers/scsi/megaraid/megaraid_sas_base.c +++ b/drivers/scsi/megaraid/megaraid_sas_base.c @@ -4052,7 +4052,6 @@ megasas_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) spin_lock_init(&instance->cmd_pool_lock); spin_lock_init(&instance->hba_lock); spin_lock_init(&instance->completion_lock); - spin_lock_init(&poll_aen_lock); mutex_init(&instance->aen_mutex); mutex_init(&instance->reset_mutex); @@ -5380,6 +5379,8 @@ static int __init megasas_init(void) printk(KERN_INFO "megasas: %s %s\n", MEGASAS_VERSION, MEGASAS_EXT_VERSION); + spin_lock_init(&poll_aen_lock); + support_poll_for_event = 2; support_device_change = 1; |