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authorStephen M. Cameron <scameron@beardog.cce.hp.com>2011-07-09 09:04:12 +0200
committerGreg Kroah-Hartman <gregkh@suse.de>2011-08-04 21:58:38 -0700
commit71e553ad4e5714309ccb6f9311fc1af3b0feaa6c (patch)
tree188eb61152747dd53a617948f3000ada3fbb6a50 /drivers/block
parentf3783ea4c293f276d79166c92bfcc4592d518d63 (diff)
cciss: do not attempt to read from a write-only register
commit 07d0c38e7d84f911c72058a124c7f17b3c779a65 upstream. Most smartarrays will tolerate it, but some new ones don't. Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Note: this is a regression caused by commit 1ddd5049 Signed-off-by: Jens Axboe <jaxboe@fusionio.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/block')
-rw-r--r--drivers/block/cciss.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/block/cciss.h b/drivers/block/cciss.h
index 16b4d58d84dd..c049548e68b7 100644
--- a/drivers/block/cciss.h
+++ b/drivers/block/cciss.h
@@ -223,7 +223,7 @@ static void SA5_submit_command( ctlr_info_t *h, CommandList_struct *c)
h->ctlr, c->busaddr);
#endif /* CCISS_DEBUG */
writel(c->busaddr, h->vaddr + SA5_REQUEST_PORT_OFFSET);
- readl(h->vaddr + SA5_REQUEST_PORT_OFFSET);
+ readl(h->vaddr + SA5_SCRATCHPAD_OFFSET);
h->commands_outstanding++;
if ( h->commands_outstanding > h->max_outstanding)
h->max_outstanding = h->commands_outstanding;