Re: [PATCH RESEND] scsi: megaraid: check kzalloc

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On 05/24/2013 11:40 AM, Libo Chen wrote:
> we should check kzalloc, avoid to hit oops
>
> Signed-off-by: Libo Chen <libo.chen@xxxxxxxxxx>
> ---
>  drivers/scsi/megaraid.c |    4 ++++
>  1 files changed, 4 insertions(+), 0 deletions(-)
>
> instead of checking scmd->device, sdev is more appropriate.
>
> diff --git a/drivers/scsi/megaraid.c b/drivers/scsi/megaraid.c
> index 846f475..6b623cb 100644
> --- a/drivers/scsi/megaraid.c
> +++ b/drivers/scsi/megaraid.c
> @@ -4161,6 +4161,10 @@ mega_internal_command(adapter_t *adapter, megacmd_t *mc, mega_passthru *pthru)
>  	memset(scb, 0, sizeof(scb_t));
>
>  	sdev = kzalloc(sizeof(struct scsi_device), GFP_KERNEL);
> +	if (sdev) {
> +		scsi_free_command(GFP_KERNEL, scmd);

I think, that a mutex_unlock(&adapter->int_mtx); is also needed
Maybe just setting a rval = -ENOMEM and a jump to to some point below?

tomash

> +		return -ENOMEM;
> +	}
>  	scmd->device = sdev;
>
>  	memset(adapter->int_cdb, 0, sizeof(adapter->int_cdb));

--
To unsubscribe from this list: send the line "unsubscribe linux-scsi" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Index of Archives]     [SCSI Target Devel]     [Linux SCSI Target Infrastructure]     [Kernel Newbies]     [IDE]     [Security]     [Git]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Linux ATA RAID]     [Linux IIO]     [Samba]     [Device Mapper]
  Powered by Linux