[SCSI] mpt fusion: don't oops if NumPhys==0
Don't oops if NumPhys==0, instead return -ENODEV. This patch fixes http://bugzilla.kernel.org/show_bug.cgi?id=9909 Signed-off-by: Krzysztof Piotr Oledzki <ole@ans.pl> Acked-by: Eric Moore <Eric.Moore@lsi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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@ -1701,6 +1701,11 @@ mptsas_sas_expander_pg0(MPT_ADAPTER *ioc, struct mptsas_portinfo *port_info,
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if (error)
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goto out_free_consistent;
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if (!buffer->NumPhys) {
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error = -ENODEV;
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goto out_free_consistent;
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}
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/* save config data */
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port_info->num_phys = buffer->NumPhys;
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port_info->phy_info = kcalloc(port_info->num_phys,
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