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Commit cda7612d authored by Stephen M. Cameron's avatar Stephen M. Cameron Committed by James Bottomley
Browse files

[SCSI] hpsa: check that simple mode is supported 



before trying to enter simple mode transport method.

Signed-off-by: default avatarStephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: default avatarJames Bottomley <James.Bottomley@suse.de>
parent eb6b2ae9

drivers/scsi/hpsa.c

+5 −0
Original line number Diff line number Diff line
@@ -3413,6 +3413,11 @@ static inline void hpsa_p600_dma_prefetch_quirk(struct ctlr_info *h) 
static int __devinit hpsa_enter_simple_mode(struct ctlr_info *h)

{

	int i;

	u32 trans_support;



	trans_support = readl(&(h->cfgtable->TransportSupport));

	if (!(trans_support & SIMPLE_MODE))

		return -ENOTSUPP;



	h->max_commands = readl(&(h->cfgtable->CmdsOutMax));

	/* Update the field, and then ring the doorbell */